$228+ Cheap flights from Portland (PDX) to Saint Thomas Island (STT)
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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STT
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Saint Thomas Island 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 Portland to Saint Thomas Island
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to Saint Thomas IslandExplore the most affordable flight options available from Portland to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
Explore the most affordable flight options available from Portland to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
This American Airlines deal was found by Cheapflights users on 9/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:09 pm -
2 stops12h 54m
Tue 11/103:15 pm -
1 stop12h 44m
Deal found 9/24![American Airlines logo]()
$460
This American Airlines deal was found by Cheapflights users on 9/28. 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.
Mon 11/3011:01 pm -
1 stop9h 14m
Tue 1/265:04 pm -
2 stops22h 07m
Deal found 9/28![American Airlines logo]()
$526
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:33 pm -
2 stops16h 47m
Fri 10/3012:07 pm -
2 stops15h 37m
Deal found 9/28![United Airlines logo]()
$560
This American Airlines deal was found by Cheapflights users on 9/26. 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.
Fri 12/41:22 pm -
2 stops22h 20m
Wed 12/91:07 pm -
2 stops26h 00m
Deal found 9/26![American Airlines logo]()
$580
This American Airlines deal was found by Cheapflights users on 9/26. 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 12/16:36 pm -
2 stops17h 00m
Tue 12/83:15 pm -
2 stops23h 47m
Deal found 9/26![American Airlines logo]()
$605
This American Airlines deal was found by Cheapflights users on 9/26. 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.
Mon 11/3011:01 pm -
1 stop12h 57m
Wed 12/91:07 pm -
2 stops26h 00m
Deal found 9/26![American Airlines logo]()
$624
This American Airlines deal was found by Cheapflights users on 9/26. 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.
Wed 12/25:00 am -
2 stops27h 17m
Mon 12/71:07 pm -
2 stops26h 00m
Deal found 9/26![American Airlines logo]()
$629
This American Airlines deal was found by Cheapflights users on 9/26. 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.
Mon 12/1411:03 pm -
1 stop9h 14m
Sat 12/196:29 pm -
2 stops20h 44m
Deal found 9/26![American Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 9/28. 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 10/243:00 pm -
2 stops20h 55m
Tue 11/33:15 pm -
2 stops25h 13m
Deal found 9/28![American Airlines logo]()
$639
This American Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/272:25 pm -
2 stops21h 30m
Mon 11/24:53 pm -
1 stop11h 06m
Deal found 9/28![American Airlines logo]()
$646
Best flights from Portland to Saint Thomas IslandDiscover carefully curated flight deals from Portland to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
Discover carefully curated flight deals from Portland to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:59 pm -
1 stop10h 32m
Sat 10/3112:07 pm -
1 stop11h 08m
Deal found 9/25![United Airlines logo]()
$560
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:15 pm -
2 stops12h 50m
Wed 11/41:07 pm -
1 stop11h 08m
Deal found 9/28![United Airlines logo]()
$560
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:15 pm -
2 stops12h 50m
Fri 10/3012:07 pm -
1 stop11h 08m
Deal found 9/28![United Airlines logo]()
$560
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am -
2 stops25h 05m
Fri 10/3012:07 pm -
1 stop11h 08m
Deal found 9/28![United Airlines logo]()
$710
This United Airlines deal was found by Cheapflights users on 9/24. 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 2/17:49 pm -
2 stops14h 07m
Fri 2/55:25 pm -
2 stops23h 01m
Deal found 9/24![United Airlines logo]()
$726
Last-minute flights from Portland to Saint Thomas IslandDiscover last-minute flight deals from Portland to Saint Thomas Island. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Saint Thomas Island. Data last updated September 29, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:33 pm -
2 stops16h 47m
Fri 10/3012:07 pm -
2 stops15h 37m
Deal found 9/28![United Airlines logo]()
$560
This American Airlines deal was found by Cheapflights users on 9/28. 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 10/243:00 pm -
2 stops20h 55m
Tue 11/33:15 pm -
2 stops25h 13m
Deal found 9/28![American Airlines logo]()
$639
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:33 pm -
2 stops14h 58m
Sat 10/3112:07 pm -
1 stop11h 08m
Deal found 9/27![United Airlines logo]()
$663
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:15 pm -
2 stops12h 50m
Sun 11/13:35 pm -
1 stop11h 40m
Deal found 9/28![United Airlines logo]()
$460
This American Airlines deal was found by Cheapflights users on 9/27. 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.
Sun 10/259:44 pm -
1 stop11h 57m
Sun 11/12:18 pm -
1 stop10h 24m
Deal found 9/27![American Airlines logo]()
$605
This American Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/272:25 pm -
2 stops21h 30m
Mon 11/24:53 pm -
1 stop11h 06m
Deal found 9/28![American Airlines logo]()
$646
This American Airlines deal was found by Cheapflights users on 9/28. 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.
Wed 10/286:09 pm -
2 stops17h 46m
Mon 11/23:15 pm -
2 stops25h 13m
Deal found 9/28![American Airlines logo]()
$629
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:15 pm -
2 stops14h 41m
Tue 11/31:07 pm -
2 stops13h 20m
Deal found 9/27![United Airlines logo]()
$682
One-way flights from Portland to Saint Thomas IslandSearch for one-way flight options from Portland to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
Search for one-way flight options from Portland to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Delta deal was found by Cheapflights users on 9/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/55:45 pm -
2 stops15h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Delta logo]()
$228
This American Airlines deal was found by Cheapflights users on 9/27. 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.
Sun 3/2110:54 pm -
1 stop9h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![American Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/111:59 pm -
2 stops13h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![United Airlines logo]()
$293
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/217:49 pm -
2 stops16h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/54:05 pm -
3 stops21h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Mon 11/237:00 am -
2 stops26h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![United Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/31:41 pm -
3 stops22h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![United Airlines logo]()
$602
Find flight deals from Portland to Saint Thomas Island
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Saint Thomas Island (STT). 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 September 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $460 (Delta) |
One-way from | $228 (Delta) |
Popular in | June |
Cheapest in | September |
Average price | $518 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Saint Thomas Island 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 September 29, 2026.
Use the filters below to find and compare flights from Portland to Saint Thomas Island that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Tue 1/5
5:45 pm-1:20 pm
2 stops15h 35m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$228
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Fri 1/1
11:59 pm-4:20 pm
1 stop12h 21m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$228
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Tue 1/5
9:34 pm-2:10 pm
1 stop12h 36m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$228
Quickest round-trip
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Sun 1/3
11:59 pm-2:31 pm
1 stop10h 32m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$228
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Sun 3/21
7:49 pm-3:20 pm
2 stops16h 31m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$375
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Sat 10/24
11:59 pm-1:31 pm
1 stop10h 32m
Saint Thomas Island Cyril E King
Sat 10/31
12:07 pm-8:15 pm
1 stop11h 08m
$560
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Wed 10/28
7:15 pm-11:05 am
2 stops12h 50m
Saint Thomas Island Cyril E King
Wed 11/4
1:07 pm-8:15 pm
1 stop11h 08m
$560
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Sun 10/25
7:15 pm-11:05 am
2 stops12h 50m
Saint Thomas Island Cyril E King
Fri 10/30
12:07 pm-8:15 pm
1 stop11h 08m
$560
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Tue 10/27
7:00 am-11:05 am
2 stops25h 05m
Saint Thomas Island Cyril E King
Fri 10/30
12:07 pm-8:15 pm
1 stop11h 08m
$710
PortlandSaint Thomas Island
PDX Portland - STT Saint Thomas Island Cyril E King
PDXSTT
Portland
Mon 2/1
7:49 pm-1:56 pm
2 stops14h 07m
Saint Thomas Island Cyril E King
Fri 2/5
5:25 pm-12:26 pm
2 stops23h 01m
$726
Sorted by cheapest first
Compare providers for flights from Portland to Saint Thomas Island
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 Portland to Saint Thomas Island in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-Saint Thomas Island flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Saint Thomas Island flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Saint Thomas Island 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 Portland-Saint Thomas Island 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 Portland to Saint Thomas Island
Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Portland with our price prediction graph.
PDX-STT
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 Portland to Saint Thomas Island
What is the cheapest month to book a flight from Portland to Saint Thomas Island?
Currently, September is the cheapest month in which you can book a flight from Portland to Saint Thomas Island (average of $518). Flying from Portland to Saint Thomas Island in June is currently the most expensive (average of $1,183). 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 Portland to Saint Thomas Island?
Airfare is below average for this route at the moment.
Portland to Saint Thomas Island flights typically cost between $815 and $1,229 in January.The cheapest round-trip price found within the last 5 days was $460 on Delta (Jan 9-Jan 14).
Reviews of airlines servicing Saint Thomas Island
Get insights into the airlines that provide service to Saint Thomas Island. 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 Saint Thomas Island. Reviews last updated September 29, 2026.
Read through reviews of airlines operating flights from Portland to Saint Thomas Island, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from Portland to Saint Thomas Island. 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 Saint Thomas Island?
Book flights to Saint Thomas Island if you plan to visit one of these locationsSt. John
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Portland and Saint Thomas Island flights
Browse other Portland and Saint Thomas Island flight options. Last updated on September 29, 2026.
Other flights from Portland
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Saint Thomas Island
Explore flights to Saint Thomas Island departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 29, 2026.
Top 3 airlines flying from Portland to Saint Thomas Island
Discover the top 3 airlines that operate flights from Portland to Saint Thomas Island. 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 September 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$445 | Average$719 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$460 | Average$760 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$559 | Average$1,050 | FlexibilityNo cancel fee | On-time69% |