過去3天找到最便宜的單程機票是多間航空公司（NT$18,677） 和 日本航空（NT$23,831），最低的來回機票則是日本航空（NT$30,648） 和 多間航空公司（NT$33,114）。
平均來說，從台北 臺灣桃園國際機場飛往丹佛（科羅拉多州），星期二出發最便宜，而星期日出發則最貴；從丹佛（科羅拉多州）返回台北 臺灣桃園國際機場，星期四出發最便宜，而星期一出發則最貴。
優點： "Love everything"
優點： "Crew was professional and friendly"
缺點： "Continuous improvement"
優點： "The crew was amazing!!"
缺點： "Nothing! Excellent flight!"
優點： "The crew is outstanding. A girl two seats away from me barfed and two attendants were there immediately with a bag, cleaning wipes, etc. They are very friendly and patient with passengers. The next best part was the comfort. I got a good amount of sleep on my nine-hour flight."
缺點： "The movie selection and meals were not bad, but I've had better on other airlines."
優點： "Crew members are extremely friendly and the seat has more leg room."
缺點： "in flight entertainment can add more movie and TV shows."
優點： "Wonderful crew"
優點： "Soo Much Food! Crew was very polite and helpful."
缺點： "They didn’t offer a vegetarian meal option in flight, but there was enough sides that it didn’t really matter."
優點： "Easy boarding. Very nice crew."
缺點： "I was unlucky and got the corner rear seat that had no window. Glad it was a short flight!"
優點： "The food on the plane is really good. The airline assistants are very friendly. The whole trip is really comfortable."
缺點： "The travel is too long for me. If there’s a direct flight, it only takes 12 to 13 hours for me to land but this trip took me 19 hours because the weather and they have to change the transfer spot to another in Japan."
缺點： "Tickets were in the wrong name and the company that issued them refused to fix the problem. I ended up buying a second ticket directly from the airlines."
優點： "Great crew! Easy transfer. Handled our luggage very well! Will fly again. Food was good!"
缺點： "More movie options would have been nice."
優點： "even though middle seat, there was enough leg room to rest comfortably."
優點： "i cancelled my flight and still have not got my money returned"
缺點： "I dont have my return but you take it right away"
優點： "Our flight was delayed due to lightning strike on arriving flight, we were transferred to non stop EVA Airline so we can get home and not need a connecting flight in Japan. JAL did all these arrangements without us requesting it. They also were very polite and got our luggage in time to be on the flight with us. JAL is truly a top airline in the world."
優點： "服務 電影 雪糕"
優點： "VERY FRIENDLY"
缺點： "BA flight with poorer screens and food than JAL"
優點： "Super cheap roundtrip flight. Reliable airline. Flight even came with a meal both ways. Kind staff. Good service."
優點： "Their customer service is excellent! when I left my card (fell out of my pursue while in transit), they called me immediately! After a long vacation, exploring. I was extremely tired and and left my phone completely on silent for 4 days, and within those 4 days they called and left me messages. Lucky I live here in Hawaii, can you imagine being a tourist and you lost your card? Excellent customer service."
缺點： "Our flight was delayed for two hours. We have a connecting flight from Osaka to Los Angeles, which we were worried we couldn't make it. They told me the flight will wait for us because there were 20 plus people also need to get on that plane. When the time of boarding we heard they were calling us to the front and explained the flight we were suppose to be connecting already took off. They had to booked us to another airline. We were extremely disappointed! We asked if we could took another Japanese airline but they said our luggages were already transferred to that airline and the tickets were printed! Mosf importantly we have already waited in airport 5 hours and they needed us to wait for another 3 hours! Very bad experience with how they dealing with this situation!"
優點： "The staff"
優點： "Movie choices"
缺點： "Too small, too hot. Not enough air conditioning. China air was better. Only one meal choice. No choice for vegetarians or allergies. Didn't warn about the rain, stairs were slippery"
優點： "The seats were quite small but other than that it was a nice flight. The crew was very nice."
優點： "Excellent service. Flight attendants are consistantly helpful and friendly."
缺點： "Food, especially before landing"
優點： "The food is very delicious. I can choose a lot of great movies. The space is also big to move."
優點： "I feel like I got way more than what I paid for with this airline! The hostesses were super friendly always offering some sort of beverage, the food was tasty (Be careful not to drop noodles on yourself like I did, those bad boys left a little mark). The video selection wasn't huge, but it was definitely adequate with good titles. Maybe I haven't noticed this before in other airlines, but they had new toothbrushes (packaged, not someone's forgotten toothbrush) in the restroom so the poor sap next to me didn't have to smell my stinky breath. Finally, they were quick with boarding! They were very punctual and we took off right when we got on, so nice!"
缺點： "The seats were pretty adequately sized, however, I felt like I couldn't lay back too far or if the the person in front of me did, it made it really difficult to get the seats. Also, I thought it was my headphones, but it happened on a couple of flights with different headphones, but the audio only comes out of one earphone which was slightly annoying... Other than those things, JAL is super solid and I would recommend it to anyone considering them."
優點： "Airplane is well kept. Snacks are available near the beverage area."
優點： "The flight attendants are quick in services and with great manner. Cabin foods are generous, filled with variety and tasting the best among various international airlines that I have experienced between LAX and Taipei, Taiwan in the past ten years. The seat belt on light and bell were kept at minimal, in contrast to other airlines like EVA, China Airlines, Korean Airlines and United Airlines."
缺點： "Never make it on flight because the connection flight so messed up. Need to purchase new ticket with different airline finally."
優點： "Everyone on the flight was very nice and helpful. Food was excellent! There were a lot of choices of movies to watch. It was probably the best flight experience I've ever had and I travel overseas quite a lot. If I ever get the chance to fly them again, I will. Great service and outstanding experience."
優點： "A meal on a two hour flight is an amazing perk!"
優點： "It was anything very good, my trips on air are great. all flight attendant did good job.i got good slept well on flight JL 060.so I will choice Japan Airline next time. Thank you very much"
優點： "Nothing I like , when u buy the ticket they're so nice , but after paid they're very bad, never take care of you, u ask them some help, they're can't"
缺點： "They every bad customer service, I never seen before"
優點： "Flight crew are very courteous and helpful. Comfortable seats and better leg room space in the economy section."
缺點： "We were delayed and stayed in the plane for 3 hours and flight was almost cancelled. Could not really understand why there was a delay or why it would have been cancelled."
優點： "Food was quite good."
缺點： "They did't speak English even though I am not Japanese. They spoke Japanese to me so, I felt little bit uncomfortable."
優點： "Staffs areattentive"
缺點： "Chair space so limited"
優點： "Comfortable and spacious for economy class. Very helpful staff."
缺點： "If I have to be picky the movie selection didn't seem great."
優點： "I asked for a window seat but if was not available. I was told to go to an information desk which were not too close and it turned out that they couldn't help."
優點： "excellent seat space, friendly flight attendants, would fly with JAL again."
優點： "Last minute accommodation for Muslim meal was awesome!"
缺點： "Transit in NRT was too short! Didn't give me time to buy souvenirs.."
缺點： "returnning flight was not attended well,so much different from going flight. Going was excellent but returnning was not nice in all face."
缺點： "The main entree was not very good."
優點： "Entertainment was excellent"
缺點： "I'm an entertainer, very well respected in Hawaii, Japan and the world. and has always traveled JAL. I travel with my guitar and has never had a problem carrying it on board. The staff will usually come a get it and put it in the closet if it didn't fit in the overhead. But I guess recently rules change, and was told I would have to check it in because the closet space is used only for staff and business people. Was told that the 737 was to small for my guitar won't fit overhead. I have taken 737's all my life with Aloha Airlines and told them that my guitar would fit. That gentleman was a JERK! and was'nt very helpful, and told me I couldn't take it on board and I would have to take it to the package store and have them box it up. That spoiled my whole vacation."
優點： "Customer service was awesome and the food was good"
缺點： "Our flight was cancelled and rebooked for 6 hours later. We did not get notification of this change. My gluten free meal was not on the flight that was changed. All the airline reps that I spoke with were very unhelpful."
優點： "It seemed more spacious. Food was pretty good."
優點： "The aircraft was a new 787 and very comfortable. Uneventful flight."
缺點： "Menu in business class."
優點： "Crew was great."
優點： "1st class flight attendant sat through the entire flight (except for offering drinks and food early in flight). There were passengers NOT wearing masks through the flight but she wouldn't know that since she never left her seat"
缺點： "just about everyting"
缺點： "IFE was not streaming movies, WiFi on but not loading"
缺點： "Spacing people out until this covid is over"
缺點： "Short flight, would have appreciated if when asking for pretzels the flaggt attendant didn't hand me the spare bag of his pockets."
優點： "Everything was great"
優點： "Appreciated the pilot keeping us informed re: turbulence and avoiding it"
優點： "I loved everything! Best flight experience in a long time. Really easy, on time, great window seat, thank you"
缺點： "Me probably. You guys were excellent!"
缺點： "Not allowed unleashed dogs to take my seat or be in my flight"
缺點： "Sat waiting for gate for 30 min"
優點： "Horrible staff at LAX boarding gate. Been treated horribly by incompetent and rude AA staff."
缺點： "Hire only friendly people for this type of job. Hire people knows basic math. Train their well on how to communicate with people."
缺點： "The plane had a mechanical issue that they needed to address (due to the fact that they prior crew did not address it) and we sat in the gate for 2 hours waiting. No worries water was offered by crew and the flight had no food."
缺點： "Flight got delayed. We paid for assigned seating for our almost 85 yo mom. And the change in flight no one asked for to get seated in the front of plane. Instead she was seated all the way in the back. It was physically exhausting for her."
優點： "The notifications regarding my connection and baggage claim."
優點： "Crew was great"
缺點： "Absolutely no accommodation for seat assignments and the lady at the gate was so rude for even just asking to sit next to my fiancé even though there were tons of single people on the flight."
優點： "The flight itself was fine."
缺點： "The gate change was not announced on my phone app (changed from E7 to D49). I hate leaving out of Terminal E at MIA. There is no point to having TSA Pre-Check if you have to stand in line with people who don't have it. I have to remove my liquids and laptop. It's such a shabby, run-down terminal."
優點： "Crew was nice"
缺點： "Not enough leg room. They did a gate change and I almost missed the flight because nothing was announced and when I looked at my phone app it had the previous gate."
優點： "Overhead bins were newly done with plenty of space since carryon can be placed vertical on side. Decide holder built into the seat was very nice."
優點： "Nice staff"
優點： "Pretty standard flight"
缺點： "Inconvenient timing and overcrowded with obnoxious children sitting on laps. No attempts made to change their behavior by crew or parents."
優點： "The plane looks like new. Great seats, phone and tablet holders at the seat back, USB outlet and a smooth flight."
缺點： "The WiFi did not work and so no entertainment for a flight of almost 4 hours."
缺點： "The sound on the entertainment system in my seat didn't work well. Also, the flight was really late getting in to Denver."
缺點： "3+ hour flight with no TV/ entertainment"
優點： "Not using kayak."
缺點： "Worst flights in history. It took three days to get from Italy to the US. Do not use kayak!"
優點： "Our plane was given to another group going to Orlando so we were delayed almost 4 hours. This after a 5 hour layover."
缺點： "Gate lady was funny about being pissed about the delay."
缺點： "Didn't like the two hour delay, especially when I was notified only a half hour before boarding! This seems to be a normal thing for American Airlines."
優點： "They got us there quickly."
優點： "Ahead of schedule"
優點： "Seats were too tight and too close together."
優點： "Movie and tv selection was good. Boarding was a cinch, we took off exactly on time, seats were comfortable, too."
缺點： "Airline misplaced my boyfriend's checked back with our duty free Portuguese wine in it. It still hasn't been delivered to him the next day. They had three hours to get the bag on the flight."
優點： "Nothing in particular"
缺點： "Outlet did not work"
缺點： "Flight crew was late and didn’t try and make things move faster to make up time. Kept saying they wanted to go Puerto Rico and that’s where they should have been going."
缺點： "Everything. Had to sleep overnight in airport and was late coming home."
優點： "Wonderful, again. Will fly American any chance I get!"
缺點： "No tvs!!"
缺點： "the new seats are awful"
優點： "Tv and power outlets"
缺點： "This one attendant didn't get her name but was very cold to me"
缺點： "Long delay"
缺點： "Small plane"
優點： "Good serice,"
缺點： "Good service to switch flight pattern from greenville to new bern but still a delay that cause a 2 flight connection. Lots of on-line issues with check-in, overall a stressful day, hopefully it will all work out!"
優點： "More improved than the last trip I took with AA to Denver. Efficient boarding."
缺點： "The flight was 3 hrs late, of which 1.5 before boarding, and almost 1.5 stuck in the plane."
缺點： "We sat on the runway for 3.5 hours while the crew cleaned up a fuel spill and we waited for a different co-pilot."
優點： "Flight not entirely sold out. So they let my 14 month grandson have an empty seat between my daughter and I. That was a great gift since he doesn't sleep and is jumping and crawling all over the place. And I'm sure the other passengers were breathing sighs of relief!! Also super smooth landing and nice flight attendants."
缺點： "Flying with an active 14 month old toddler boy and of his "stuff" is nothing less than anxiety provoking. Not much the airline can do.."
缺點： "Had to board three times, two different planes. I understand mechanical problems, but 3 hours later, and on another plane, the captain starts making stuff up, saying that the only reason we hadn't moved in the last hour was because people were using the bathroom, then something about having to deplane because the plane couldn't back up with us on it because of some sensor? And then, surprise ! All of the sudden they noticed there was an issue with his and some of the crews' hours and we had to wait till they could locate more crew. But they gave us each a 1/3 glass of water and later a $12 food voucher which didn't even cover a meal and beverage. Whoop-de-do. 7 hours later we finally boarded for the third and last time. The crew on the other hand stayed professional and friendly."
缺點： "Seats too small and the gentleman next to me was a big guy so crowded over into my seat some."
優點： "Fast and friendly"
優點： "Good job"
優點： "How easy everything was"
缺點： "The delay"
優點： "Very helpful assistance staff, food and drinks delicious, excellent service onboard"
缺點： "At Denver assistance hadn’t been arranged"
缺點： "Only bathroom on the plane was closed due to issues. Plane was cold and cramped."
優點： "Love United’s service. Nothing to complain about."
缺點： "It sucked in many ways. But that wasn't united's fault. The weather was threatening lightning in Denver and of course because of that the world stops turning."
缺點： "There are hard to reach outlets and no ports to charge a device without a box. Also, no monitors."
缺點： "When I spoke to the United person last week to confirm baggage and carry on requirements. He said I could take a carry on when I turned up to the gates I was charged another fee for my carry on bag. What is baffling is that when I arrived at Denver people were getting complementary check in baggage. I’m so dissatisfied with the booking and the amount it has now cost me ruining any savings I’d had for sanfrancisco"
缺點： "The boarding process was chaotic and the plane attempted to land once, got about 100 feet from the ground and had to pull up. So we basically landed twice."
優點： "I liked the ticket price."
缺點： "The seat was very narrow with absolutely minimal leg space, and a carry-on bag was not included in the fare."
缺點： "Delays in flights were a disappointment"
缺點： "Sits not suitable for long distance travel"
缺點： "They made me put my carry on under the plane."
缺點： "Missed connection due to mechanical"
缺點： "Crowded planes."
優點： "Everything was very nice."
優點： "Everything was on time and all the staff were professional and friendly"
優點： "The variety of movies"
缺點： "No daily wifi"
優點： "One if the bathrooms was closed and a second one had no running water."
優點： "Repairs caused a long delay, they kept us informed but it was a hurry up and wait forever"
優點： "Nothing unusual every was smooth"
缺點： "Not applicable"
優點： "Staff was nice!"
缺點： "I didn't like the luggage restrictions associated with our tickets."
優點： "Curtial personnel"
缺點： "Late departures both ways."
缺點： "No entertainment screen on each seat, just old TV far away. Very boring on this trip"
優點： "Early arrival"
缺點： "Waiting for docking spot."
缺點： "中文廣播人員結結巴巴都在亂翻譯，太不專業了 服務人員一直玩，講話好大聲，讓人不能休息，很不舒服 大家下飛機時，每間航班都會很有禮貌一直謝謝搭乘，UA871我沒感受到。"
優點： "Got there on time."
缺點： "Private screening does not work well. Very little kneeroom. No room in seat back pockets to put anything."
優點： "Suitcase arrived at the carrousel on time , much better than Houston."
缺點： "Delayed and got downgraded without refund of difference"
優點： "United payed for the room and 20 bucks for food."
缺點： "Late. Missed the connection to Gillette and had to stay overnight."
優點： "Had a stroller, two bags, and a car seat and the check in staff helped us tag everything and loaded it for us. It was nice to see the Billings staff go above and beyond in my families time of need."
缺點： "Unreliable wifi."
優點： "Getting off the plane"
缺點： "Bathrooms weren't working, huge lines in aisle, lackluster service. Overhead bins were full by Group 3. late takeoff."
優點： "United seems to be recycling which is a good thing."
缺點： "The obnoxious child sitting behind me. He kicked the seat and pulled on the tray."
缺點： "Didn't receive my carry-on when arrived in ELP. Finally got it the next day."
優點： "Everything went smoothly"
優點： "Quick boarding"
優點： "It was fine!!"
優點： "New plane, wifi, arrived 27 mins early"
優點： "Perfect, but I did upgrade to United's business plus."
優點： "I recoment it..."
缺點： "No complementary food!!!"
豁免更改費用。 搜尋台北 臺灣桃園國際機場飛往丹佛（科羅拉多州）的彈性機票