$219+ Cheap flights from Philadelphia to Santa Rosa (PHL - STS)
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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STS
May 30 — Jun 61
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Santa Rosa 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 Philadelphia to Santa Rosa
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Cheapest flights from Philadelphia to Santa RosaExplore the most affordable flight options available from Philadelphia to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
Explore the most affordable flight options available from Philadelphia to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
This Southwest deal was found by Cheapflights users on 4/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:35 pm
PHL
- STS
2 stops13h 55m
Southwest
Tue 6/96:00 am
STS
- PHL
2 stops16h 00m
Southwest
Deal found 4/27![Southwest logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:00 am
PHL
- STS
1 stop15h 46m
Alaska Airlines
Mon 6/16:59 pm
STS
- PHL
1 stop17h 46m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$477
This American Airlines deal was found by Cheapflights users on 4/26. 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 7/285:00 am
PHL
- STS
1 stop10h 03m
American Airlines
Tue 8/1112:58 pm
STS
- PHL
1 stop7h 30m
American Airlines
Deal found 4/26![American Airlines logo]()
$488
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/44:45 pm
PHL
- STS
1 stop9h 45m
Alaska Airlines
Tue 6/95:44 pm
STS
- PHL
2 stops33h 29m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$501
This Southwest deal was found by Cheapflights users on 4/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/102:20 pm
PHL
- STS
2 stops11h 25m
Southwest
Sun 6/144:55 pm
STS
- PHL
2 stops14h 40m
Southwest
Deal found 4/27![Southwest logo]()
$504
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:45 pm
PHL
- STS
1 stop19h 09m
Alaska Airlines
Sat 6/61:17 pm
STS
- PHL
1 stop13h 18m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$529
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am
PHL
- STS
1 stop8h 43m
Alaska Airlines
Wed 9/25:31 pm
STS
- PHL
1 stop9h 09m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$539
Best flights from Philadelphia to Santa RosaDiscover carefully curated flight deals from Philadelphia to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
Discover carefully curated flight deals from Philadelphia to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
This Southwest deal was found by Cheapflights users on 4/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:35 pm
PHL
- STS
2 stops13h 55m
Southwest
Tue 6/96:00 am
STS
- PHL
2 stops16h 00m
Southwest
Deal found 4/27![Southwest logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:00 am
PHL
- STS
1 stop15h 46m
Alaska Airlines
Mon 6/16:59 pm
STS
- PHL
1 stop17h 46m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$477
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/44:45 pm
PHL
- STS
1 stop9h 45m
Alaska Airlines
Tue 6/95:44 pm
STS
- PHL
2 stops33h 29m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$501
This Southwest deal was found by Cheapflights users on 4/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:50 pm
PHL
- STS
2 stops11h 55m
Southwest
Tue 8/116:00 am
STS
- PHL
2 stops14h 50m
Southwest
Deal found 4/26![Southwest logo]()
$504
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/109:35 am
PHL
- STS
2 stops16h 10m
Southwest
Sun 6/144:55 pm
STS
- PHL
2 stops14h 40m
Southwest
Deal found 4/29![Southwest logo]()
$510
This Southwest deal was found by Cheapflights users on 4/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2112:45 pm
PHL
- STS
2 stops12h 55m
Southwest
Sun 5/3111:35 am
STS
- PHL
2 stops10h 40m
Southwest
Deal found 4/25![Southwest logo]()
$536
Last-minute flights from Philadelphia to Santa RosaDiscover last-minute flight deals from Philadelphia to Santa Rosa. Data last updated April 30, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Santa Rosa. Data last updated April 30, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/144:45 pm
PHL
- STS
1 stop9h 45m
Alaska Airlines
Tue 5/265:44 pm
STS
- PHL
2 stops32h 51m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$639
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:45 pm
PHL
- STS
2 stops30h 21m
Alaska Airlines
Tue 5/265:44 pm
STS
- PHL
2 stops32h 51m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$595
This Southwest deal was found by Cheapflights users on 4/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:50 am
PHL
- STS
2 stops13h 05m
Southwest
Fri 5/2211:00 am
STS
- PHL
2 stops8h 45m
Southwest
Deal found 4/27![Southwest logo]()
$568
This American Airlines deal was found by Cheapflights users on 4/27. 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 5/208:40 am
PHL
- STS
1 stop10h 13m
American Airlines
Fri 5/224:20 pm
STS
- PHL
1 stop10h 14m
American Airlines
Deal found 4/27![American Airlines logo]()
$633
This Southwest deal was found by Cheapflights users on 4/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:55 am
PHL
- STS
2 stops11h 05m
Southwest
Mon 6/111:00 am
STS
- PHL
2 stops8h 45m
Southwest
Deal found 4/25![Southwest logo]()
$588
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:00 am
PHL
- STS
1 stop15h 46m
Alaska Airlines
Mon 6/16:59 pm
STS
- PHL
1 stop17h 46m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$477
One-way flights from Philadelphia to Santa RosaSearch for one-way flight options from Philadelphia to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
Search for one-way flight options from Philadelphia to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
This American Airlines deal was found by Cheapflights users on 4/29. 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 6/167:00 am
PHL
- STS
1 stop8h 39m
American Airlines
Deal found 4/29![American Airlines logo]()
$219
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/162:20 pm
PHL
- STS
2 stops11h 25m
Southwest
Deal found 4/29![Southwest logo]()
$224
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:35 pm
PHL
- STS
2 stops12h 05m
Southwest
Deal found 4/28![Southwest logo]()
$244
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/54:45 pm
PHL
- STS
1 stop9h 45m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:35 pm
PHL
- STS
2 stops13h 55m
Southwest
Deal found 4/28![Southwest logo]()
$275
This Southwest deal was found by Cheapflights users on 4/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2612:35 pm
PHL
- STS
2 stops13h 55m
Southwest
Deal found 4/26![Southwest logo]()
$281
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:45 pm
PHL
- STS
1 stop19h 09m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$287
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:00 am
PHL
- STS
2 stops10h 39m
American Airlines
Deal found 4/25![American Airlines logo]()
$299
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:46 pm
PHL
- STS
1 stop8h 44m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$301
This American Airlines deal was found by Cheapflights users on 4/28. 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 8/17:05 am
PHL
- STS
1 stop8h 25m
American Airlines
Deal found 4/28![American Airlines logo]()
$325
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:07 am
PHL
- STS
2 stops10h 19m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 4/26. 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.
Sun 7/125:00 am
PHL
- STS
1 stop10h 03m
American Airlines
Deal found 4/26![American Airlines logo]()
$356
Find flight deals from Philadelphia to Santa Rosa
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Santa Rosa (STS). 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 April 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $473 (Southwest) |
One-way from | $219 (American Airlines) |
Popular in | December |
Cheapest in | March |
Average price | $1,038 |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Santa Rosa 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 April 30, 2026.
Use the filters below to find and compare flights from Philadelphia to Santa Rosa that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Thu 6/4
12:35 pm-11:30 pm
2 stops13h 55m
Santa Rosa Sonoma County
Tue 6/9
6:00 am-1:00 am
2 stops16h 00m
$473
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Thu 5/28
7:00 am-7:46 pm
1 stop15h 46m
Santa Rosa Sonoma County
Mon 6/1
6:59 pm-3:45 pm
1 stop17h 46m
$477
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Thu 6/4
4:45 pm-11:30 pm
1 stop9h 45m
Santa Rosa Sonoma County
Tue 6/9
5:44 pm-6:13 am
2 stops33h 29m
$501
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Tue 7/28
1:50 pm-10:45 pm
2 stops11h 55m
Santa Rosa Sonoma County
Tue 8/11
6:00 am-11:50 pm
2 stops14h 50m
$504
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Wed 6/10
9:35 am-10:45 pm
2 stops16h 10m
Santa Rosa Sonoma County
Sun 6/14
4:55 pm-10:35 am
2 stops14h 40m
$510
Quickest round-trip
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Thu 5/21
12:45 pm-10:40 pm
2 stops12h 55m
Santa Rosa Sonoma County
Sun 5/31
11:35 am-1:15 am
2 stops10h 40m
$536
Cheapest one-way
Quickest one-way
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Tue 6/16
7:00 am-12:39 pm
1 stop8h 39m
$219
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Wed 5/27
2:00 pm-10:10 pm
2 stops11h 10m
$224
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Thu 5/28
1:35 pm-10:40 pm
2 stops12h 05m
$244
PhiladelphiaSanta Rosa
PHL - STS
PHLSTS
Philadelphia
Thu 7/30
5:46 pm-11:30 pm
1 stop8h 44m
$270
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Santa Rosa
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 Philadelphia to Santa Rosa in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Santa Rosa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Santa Rosa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Santa Rosa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Santa Rosa 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 Philadelphia-Santa Rosa 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 Philadelphia to Santa Rosa
Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Philadelphia with our price prediction graph.
PHL-STS
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 Philadelphia to Santa Rosa
What is the cheapest month to book a flight from Philadelphia to Santa Rosa?
Currently, March is the cheapest month in which you can book a flight from Philadelphia to Santa Rosa (average of $256). Flying from Philadelphia to Santa Rosa in December is currently the most expensive (average of $1,088). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Philadelphia to Santa Rosa?
Reviews of airlines servicing Santa Rosa
Get insights into the airlines that provide service to Santa Rosa. 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 Santa Rosa. Reviews last updated April 30, 2026.
Peruse reviews from past customers who have flown with American Airlines from Philadelphia to Santa Rosa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.9
Boarding
7.5
Food
6.4
Overall
7.1
Comfort
7.2
Entertainment
6.9
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Crew
7.9
Boarding
7.5
Food
6.4
Overall
7.1
Comfort
7.2
Entertainment
6.9
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Santa Rosa?
Book flights to Santa Rosa if you plan to visit one of these locationsFort Bragg
Ukiah
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Philadelphia and Santa Rosa flights
Browse other Philadelphia and Santa Rosa flight options. Last updated on April 30, 2026.
Other flights from Philadelphia
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Popular flight searches
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Other flights to Santa Rosa
Explore flights to Santa Rosa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 30, 2026.
Top airline flying from Philadelphia to Santa Rosa
Discover the top airline that operate flights from Philadelphia to Santa Rosa. 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 April 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$289 | Average$678 | FlexibilityNo cancel fee | On-time71% |