$151+ Cheap flights from Grand Junction to Ontario (GJT - ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
GJT — ONT
Jul 10 — Jul 171
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
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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 June 10, 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 June 10, 2026.
This Delta deal was found by Cheapflights users on 6/8. 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 6/246:50 pm
GJT
- ONT
1 stop5h 59m
Delta
Mon 6/291:00 pm
ONT
- GJT
1 stop4h 15m
Delta
Deal found 6/8![Delta logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 7/712:53 pm
GJT
- ONT
1 stop20h 10m
Multiple Airlines
Mon 7/1311:52 am
ONT
- GJT
1 stop23h 21m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 6/8. 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 6/243:15 pm
GJT
- ONT
1 stop6h 31m
United Airlines
Sat 6/275:00 am
ONT
- GJT
1 stop6h 31m
United Airlines
Deal found 6/8![United Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 6/7. 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 8/219:24 am
GJT
- ONT
2 stops11h 37m
United Airlines
Tue 8/255:00 am
ONT
- GJT
1 stop6h 38m
United Airlines
Deal found 6/7![United Airlines logo]()
$356
This American Airlines deal was found by Cheapflights users on 6/6. 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 6/246:55 pm
GJT
- ONT
1 stop4h 02m
American Airlines
Wed 7/11:11 pm
ONT
- GJT
2 stops8h 42m
American Airlines
Deal found 6/6![American Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 6/8. 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.
Mon 8/107:41 am
GJT
- ONT
1 stop5h 35m
Delta
Thu 8/135:05 pm
ONT
- GJT
1 stop3h 51m
Delta
Deal found 6/8![Delta logo]()
$367
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 6/266:55 pm
GJT
- ONT
1 stop4h 02m
American Airlines
Sun 7/56:11 am
ONT
- GJT
1 stop4h 20m
American Airlines
Deal found 6/9![American Airlines logo]()
$375
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Mon 6/156:55 pm
GJT
- ONT
1 stop4h 02m
American Airlines
Sat 6/206:10 am
ONT
- GJT
1 stop4h 25m
American Airlines
Deal found 6/8![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 6/9. 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 12/35:30 am
GJT
- ONT
2 stops7h 50m
United Airlines
Fri 12/115:00 am
ONT
- GJT
1 stop4h 55m
United Airlines
Deal found 6/9![United Airlines logo]()
$380
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 June 10, 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 June 10, 2026.
This United Airlines deal was found by Cheapflights users on 6/7. 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 8/219:24 am
GJT
- ONT
2 stops11h 37m
United Airlines
Tue 8/255:00 am
ONT
- GJT
1 stop6h 38m
United Airlines
Deal found 6/7![United Airlines logo]()
$356
This Delta deal was found by Cheapflights users on 6/9. 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 10/87:41 am
GJT
- ONT
1 stop5h 49m
Delta
Sun 10/115:05 pm
ONT
- GJT
1 stop3h 45m
Delta
Deal found 6/9![Delta logo]()
$506
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 8/47:00 am
GJT
- ONT
1 stop6h 47m
United Airlines
Tue 8/115:00 am
ONT
- GJT
1 stop6h 38m
United Airlines
Deal found 6/10![United Airlines logo]()
$405
This United Airlines deal was found by Cheapflights users on 6/6. 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 9/51:40 pm
GJT
- ONT
2 stops7h 21m
United Airlines
Sun 9/135:00 am
ONT
- GJT
1 stop4h 44m
United Airlines
Deal found 6/6![United Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/261:33 pm
GJT
- ONT
2 stops10h 04m
United Airlines
Fri 7/31:18 pm
ONT
- GJT
1 stop6h 16m
United Airlines
Deal found 6/10![United Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 6/6. 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 9/51:40 pm
GJT
- ONT
2 stops7h 21m
United Airlines
Mon 9/141:18 pm
ONT
- GJT
1 stop6h 17m
United Airlines
Deal found 6/6![United Airlines logo]()
$510
Last-minute flights from Grand Junction to OntarioDiscover last-minute flight deals from Grand Junction to Ontario. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Grand Junction to Ontario. Data last updated June 10, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Mon 6/156:55 pm
GJT
- ONT
1 stop4h 02m
American Airlines
Sat 6/206:10 am
ONT
- GJT
1 stop4h 25m
American Airlines
Deal found 6/8![American Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 6/8. 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 6/246:50 pm
GJT
- ONT
1 stop5h 59m
Delta
Mon 6/291:00 pm
ONT
- GJT
1 stop4h 15m
Delta
Deal found 6/8![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 6/8. 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 6/243:15 pm
GJT
- ONT
1 stop6h 31m
United Airlines
Sat 6/275:00 am
ONT
- GJT
1 stop6h 31m
United Airlines
Deal found 6/8![United Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 6/6. 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 6/246:55 pm
GJT
- ONT
1 stop4h 02m
American Airlines
Wed 7/11:11 pm
ONT
- GJT
2 stops8h 42m
American Airlines
Deal found 6/6![American Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 6/8. 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 6/243:15 pm
GJT
- ONT
1 stop6h 31m
United Airlines
Sun 6/285:00 am
ONT
- GJT
1 stop6h 31m
United Airlines
Deal found 6/8![United Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 6/266:55 pm
GJT
- ONT
1 stop4h 02m
American Airlines
Sun 7/56:11 am
ONT
- GJT
1 stop4h 20m
American Airlines
Deal found 6/9![American Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 6/8. 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 6/287:40 am
GJT
- ONT
1 stop5h 30m
Delta
Mon 6/291:00 pm
ONT
- GJT
1 stop4h 15m
Delta
Deal found 6/8![Delta logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 7/712:53 pm
GJT
- ONT
1 stop20h 10m
Multiple Airlines
Mon 7/1311:52 am
ONT
- GJT
1 stop23h 21m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$303
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/256:54 pm
GJT
- ONT
1 stop3h 50m
American Airlines
Sat 8/16:11 am
ONT
- GJT
1 stop4h 20m
American Airlines
Deal found 6/10![American Airlines logo]()
$426
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 June 10, 2026.
Search for one-way flight options from Grand Junction to Ontario. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/161:23 pm
GJT
- ONT
1 stop19h 40m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$151
This American Airlines deal was found by Cheapflights users on 6/6. 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.
Tue 6/166:55 pm
GJT
- ONT
1 stop4h 02m
American Airlines
Deal found 6/6![American Airlines logo]()
$214
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Tue 6/165:30 am
GJT
- ONT
2 stops7h 42m
United Airlines
Deal found 6/6![United Airlines logo]()
$224
This United Airlines deal was found by Cheapflights users on 6/9. 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 12/35:30 am
GJT
- ONT
2 stops7h 50m
United Airlines
Deal found 6/9![United Airlines logo]()
$229
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Fri 6/196:55 pm
GJT
- ONT
1 stop4h 02m
American Airlines
Deal found 6/8![American Airlines logo]()
$241
This United Airlines deal was found by Cheapflights users on 6/8. 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 6/195:30 am
GJT
- ONT
2 stops7h 42m
United Airlines
Deal found 6/8![United Airlines logo]()
$246
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Tue 6/238:35 am
GJT
- ONT
1 stop4h 29m
American Airlines
Deal found 6/8![American Airlines logo]()
$254
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Tue 6/235:30 am
GJT
- ONT
2 stops7h 42m
United Airlines
Deal found 6/8![United Airlines logo]()
$259
This United Airlines deal was found by Cheapflights users on 6/8. 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 6/277:00 am
GJT
- ONT
1 stop6h 47m
United Airlines
Deal found 6/8![United Airlines logo]()
$281
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 June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (Delta) |
One-way from | $151 (Kiwi.com) |
Popular in | January |
Cheapest in | February |
Average price | $383 |
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 2,558,603 searches. Data last updated June 10, 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 - ONT
GJTONT
Grand Junction Regnl
Fri 8/21
9:24 am-8:01 pm
2 stops11h 37m
Ontario
Tue 8/25
5:00 am-12:38 pm
1 stop6h 38m
$356
Grand JunctionOntario
GJT - ONT
GJTONT
Grand Junction Regnl
Tue 8/4
7:00 am-12:47 pm
1 stop6h 47m
Ontario
Tue 8/11
5:00 am-12:38 pm
1 stop6h 38m
$405
Grand JunctionOntario
GJT - ONT
GJTONT
Grand Junction Regnl
Sat 9/5
1:40 pm-8:01 pm
2 stops7h 21m
Ontario
Sun 9/13
5:00 am-10:44 am
1 stop4h 44m
$436
Grand JunctionOntario
GJT - ONT
GJTONT
Grand Junction Regnl
Fri 6/26
1:33 pm-10:37 pm
2 stops10h 04m
Ontario
Fri 7/3
1:18 pm-8:34 pm
1 stop6h 16m
$461
Quickest round-trip
Grand JunctionOntario
GJT - ONT
GJTONT
Grand Junction Regnl
Thu 10/8
7:41 am-12:30 pm
1 stop5h 49m
Ontario
Sun 10/11
5:05 pm-9:50 pm
1 stop3h 45m
$506
Grand JunctionOntario
GJT - ONT
GJTONT
Grand Junction Regnl
Sat 9/5
1:40 pm-8:01 pm
2 stops7h 21m
Ontario
Mon 9/14
1:18 pm-8:35 pm
1 stop6h 17m
$510
Cheapest one-way
Grand JunctionOntario
GJT - ONT
GJTONT
Grand Junction Regnl
Sun 8/16
1:23 pm-8:03 am
1 stop19h 40m
$151
Grand JunctionOntario
GJT - ONT
GJTONT
Grand Junction Regnl
Tue 6/16
5:30 am-12:12 pm
2 stops7h 42m
$224
Grand JunctionOntario
GJT - ONT
GJTONT
Grand Junction Regnl
Wed 6/17
5:30 am-12:12 pm
2 stops7h 42m
$224
Grand JunctionOntario
GJT - ONT
GJTONT
Grand Junction Regnl
Thu 12/3
5:30 am-12:20 pm
2 stops7h 50m
$229
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 June.
| 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.
Cheapflights Insights
Everything you need to know about your flight from Grand Junction to Ontario
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 June 10, 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.
Overall
7.1
Crew
7.9
Food
6.4
Entertainment
6.9
Boarding
7.5
Comfort
7.2
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Overall
7.1
Crew
7.9
Food
6.4
Entertainment
6.9
Boarding
7.5
Comfort
7.2
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 June 10, 2026.
Grand Junction and Ontario flights
Browse other Grand Junction and Ontario flight options. Last updated on June 10, 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 June 10, 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 2,558,603 searches. Data last updated June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$354 | FlexibilityNo cancel fee | On-time71% |