$294+ Cheap flights from Grand Junction to Ontario (GJT - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
GJT — ONT
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Grand Junction to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Grand Junction to Ontario
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Cheapest flights from Grand Junction to OntarioExplore the most affordable flight options available from Grand Junction to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Grand Junction to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/21:11 pm -
1 stop4h 11m
Tue 12/156:00 am -
1 stop5h 36m
Deal found 10/20![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/31:11 pm -
2 stops10h 48m
Wed 12/96:00 am -
1 stop5h 36m
Deal found 10/20![Delta logo]()
$364
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
1 stop4h 00m
Sun 11/87:49 pm -
1 stop3h 41m
Deal found 10/20![American Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:30 am -
2 stops7h 59m
Sun 11/85:00 am -
1 stop4h 47m
Deal found 10/20![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/21:11 pm -
1 stop4h 11m
Mon 12/146:00 am -
1 stop5h 36m
Deal found 10/20![Delta logo]()
$404
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:11 pm -
2 stops10h 48m
Tue 12/156:00 am -
1 stop5h 36m
Deal found 10/20![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:15 pm -
2 stops10h 28m
Wed 11/46:00 am -
1 stop5h 30m
Deal found 10/25![Delta logo]()
$438
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:48 pm -
1 stop4h 04m
Mon 11/307:45 pm -
1 stop3h 41m
Deal found 10/21![American Airlines logo]()
$441
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:15 pm -
2 stops10h 28m
Mon 11/26:00 am -
1 stop5h 30m
Deal found 10/25![Delta logo]()
$446
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:11 pm -
2 stops10h 48m
Mon 12/146:00 am -
1 stop5h 36m
Deal found 10/20![Delta logo]()
$454
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
1 stop6h 33m
Tue 12/15:00 am -
1 stop6h 27m
Deal found 10/24![United Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:15 pm -
2 stops10h 28m
Tue 11/36:00 am -
1 stop5h 30m
Deal found 10/25![Delta logo]()
$461
Best flights from Grand Junction to OntarioDiscover carefully curated flight deals from Grand Junction to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Grand Junction to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:11 pm -
1 stop4h 17m
Wed 12/96:00 am -
1 stop5h 36m
Deal found 10/20![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:30 am -
2 stops7h 59m
Sun 11/85:00 am -
1 stop4h 47m
Deal found 10/20![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/61:11 pm -
2 stops10h 48m
Sun 12/136:00 am -
1 stop5h 36m
Deal found 10/20![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
1 stop6h 33m
Tue 12/15:00 am -
1 stop6h 27m
Deal found 10/24![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/233:15 pm -
1 stop6h 45m
Tue 1/265:00 am -
1 stop6h 35m
Deal found 10/22![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/243:15 pm -
1 stop6h 45m
Sun 2/75:00 am -
1 stop6h 35m
Deal found 10/23![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:00 am -
2 stops9h 33m
Sat 11/145:00 am -
1 stop6h 45m
Deal found 10/20![United Airlines logo]()
$464
Last-minute flights from Grand Junction to OntarioDiscover last-minute flight deals from Grand Junction to Ontario. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Grand Junction to Ontario. Data last updated October 25, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:15 pm -
2 stops10h 28m
Sat 10/316:00 am -
1 stop5h 30m
Deal found 10/25![Delta logo]()
$461
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:15 pm -
2 stops10h 28m
Mon 11/26:00 am -
1 stop5h 30m
Deal found 10/25![Delta logo]()
$469
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:15 pm -
2 stops10h 28m
Tue 11/36:00 am -
1 stop5h 30m
Deal found 10/25![Delta logo]()
$438
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:15 pm -
2 stops10h 28m
Mon 11/26:00 am -
1 stop5h 30m
Deal found 10/25![Delta logo]()
$446
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
1 stop4h 00m
Sun 11/87:49 pm -
1 stop3h 41m
Deal found 10/20![American Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:30 am -
2 stops7h 59m
Sun 11/85:00 am -
1 stop4h 47m
Deal found 10/20![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:00 am -
2 stops9h 33m
Sat 11/145:00 am -
1 stop6h 45m
Deal found 10/20![United Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:48 pm -
1 stop4h 04m
Mon 11/307:45 pm -
1 stop3h 41m
Deal found 10/21![American Airlines logo]()
$441
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
1 stop6h 33m
Tue 12/15:00 am -
1 stop6h 27m
Deal found 10/24![United Airlines logo]()
$459
One-way flights from Grand Junction to OntarioSearch for one-way flight options from Grand Junction to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Grand Junction to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/233:11 pm -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$294
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:00 am -
1 stop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![American Airlines logo]()
$305
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/113:11 pm -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1010:30 am -
2 stops10h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/83:16 pm -
1 stop6h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![United Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/231:39 pm -
2 stops10h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/171:10 pm -
3 stops30h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$463
Find flight deals from Grand Junction to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Grand Junction (GJT) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $359 (Delta) |
One-way from | $294 (United Airlines) |
Popular in | January |
Cheapest in | February |
Average price | $441 |
Cheapflights Fare Finder
Customize your flight search to find flights from Grand Junction to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from Grand Junction to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Mon 11/23
3:11 pm-8:51 pm
1 stop6h 40m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$294
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Sun 1/17
1:11 pm-10:43 pm
2 stops10h 32m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$299
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Tue 11/24
5:30 am-12:29 pm
2 stops7h 59m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$299
Quickest round-trip
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Wed 12/23
6:00 am-8:45 am
1 stop3h 45m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$307
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Mon 1/18
7:00 am-12:40 pm
1 stop6h 40m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$344
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Sun 1/17
3:15 pm-9:00 pm
1 stop6h 45m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$344
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Wed 2/10
10:30 am-8:01 pm
2 stops10h 31m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$349
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Sat 12/5
1:11 pm-4:28 pm
1 stop4h 17m
Ontario
Wed 12/9
6:00 am-12:36 pm
1 stop5h 36m
$359
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Mon 3/8
3:16 pm-8:32 pm
1 stop6h 16m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$363
Grand JunctionOntario
GJT Grand Junction Regnl - ONT Ontario
GJTONT
Grand Junction Regnl
Wed 11/4
5:30 am-12:29 pm
2 stops7h 59m
Ontario
Sun 11/8
5:00 am-10:47 am
1 stop4h 47m
$394
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Grand Junction to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Grand Junction to Ontario in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Grand Junction-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Grand Junction-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Grand Junction-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Grand Junction-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Grand Junction-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Grand Junction to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Grand Junction with our price prediction graph.
GJT-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated October 25, 2026.
Read reviews from past customers who have flown American Airlines from Grand Junction to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.1
Food
6.4
Overall
7.0
Boarding
7.4
Crew
7.9
Entertainment
6.8
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Comfort
7.1
Food
6.4
Overall
7.0
Boarding
7.4
Crew
7.9
Entertainment
6.8
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Related info for your journey
Find useful and relevant information for your journey from Grand Junction to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Grand Junction and Ontario flights
Browse other Grand Junction and Ontario flight options. Last updated on October 25, 2026.
Other flights from Grand Junction
Browse through other flights departing from Grand Junction. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Grand Junction to Ontario
Discover the top airline that operate flights from Grand Junction to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$382 | FlexibilityNo cancel fee | On-time71% |