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Luis Munoz Marin Intl

$133+ Cheap flights from Reagan-National (DCA) to Luis Munoz Marin Intl (SJU)

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SJU
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl are usually found in October or February, booked 81 days in advance, depart on a Tuesday or Monday and return on a Friday

Cheap flight deals from Reagan-National to Luis Munoz Marin Intl

Cheapest flights from Reagan-National to Luis Munoz Marin Intl
Explore the most affordable flight options available from Reagan-National to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2026.

This SmartFares deal was found by Cheapflights users on 4/22. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:20 am
DCA
-
SJU
Nonstop3h 59m
JetBlue
Wed 8/196:07 pm
SJU
-
DCA
Nonstop3h 52m
JetBlue
Deal found 4/22$249
This SmartFares deal was found by Cheapflights users on 4/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/318:20 am
DCA
-
SJU
Nonstop3h 45m
JetBlue
Thu 6/45:10 pm
SJU
-
DCA
Nonstop3h 53m
JetBlue
Deal found 4/21$264
This Delta deal was found by Cheapflights users on 4/20. 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 8/212:27 pm
DCA
-
SJU
1 stop8h 18m
Delta
Thu 8/612:56 pm
SJU
-
DCA
1 stop9h 48m
Delta
Deal found 4/20$266
This American Airlines deal was found by Cheapflights users on 4/19. 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 8/193:11 pm
DCA
-
SJU
1 stop8h 48m
American Airlines
Wed 8/261:38 pm
SJU
-
DCA
1 stop8h 22m
American Airlines
Deal found 4/19$271
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/248:20 am
DCA
-
SJU
Nonstop3h 45m
JetBlue
Fri 5/295:10 pm
SJU
-
DCA
Nonstop3h 53m
JetBlue
Deal found 4/21$272
This Delta deal was found by Cheapflights users on 4/17. 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 8/76:02 am
DCA
-
SJU
1 stop10h 36m
Delta
Wed 8/121:35 pm
SJU
-
DCA
1 stop9h 37m
Delta
Deal found 4/17$276
This JetBlue deal was found by Cheapflights users on 4/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/318:20 am
DCA
-
SJU
Nonstop3h 45m
JetBlue
Sat 6/65:10 pm
SJU
-
DCA
Nonstop3h 53m
JetBlue
Deal found 4/20$278
This American Airlines deal was found by Cheapflights users on 4/20. 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.
Mon 8/241:53 pm
DCA
-
SJU
1 stop8h 31m
American Airlines
Sat 8/297:10 pm
SJU
-
DCA
1 stop13h 59m
American Airlines
Deal found 4/20$291
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:55 am
DCA
-
SJU
1 stop12h 05m
Southwest
Sun 8/166:00 am
SJU
-
DCA
1 stop12h 50m
Southwest
Deal found 4/20$296
This Cheapflightsfares deal was found by Cheapflights users on 4/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:00 am
DCA
-
SJU
Nonstop3h 45m
JetBlue
Thu 5/215:10 pm
SJU
-
DCA
Nonstop3h 53m
JetBlue
Deal found 4/17$297

Find flight deals from Reagan-National to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Luis Munoz Marin Intl (SJU). 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 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(SmartFares)

One-way from

$133
(Delta)

Popular in

August

Cheapest in

October

Average price

$408

Good round-trip deal

$367 or less

Good one-way deal

$196 or less
Provider with most accurate pricing for Washington, D.C. Reagan-National-San Juan Luis Munoz Marin Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-San Juan Luis Munoz Marin Intl flights.
Search Deals
From Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Luis Munoz Marin Intl 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 22, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 5/10

6:09 am-4:29 pm

1 stop10h 20m

San Juan Luis Munoz Marin Intl

Fri 5/15

2:48 pm-11:44 pm

1 stop8h 56m

$356

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 4/28

7:00 am-1:45 pm

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Tue 4/28

1:00 am-1:10 pm

2 stops12h 10m

$357

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 6/29

9:30 am-8:34 pm

1 stop11h 04m

San Juan Luis Munoz Marin Intl

Thu 7/2

1:00 am-9:32 am

1 stop8h 32m

$362

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Thu 5/7

11:55 am-8:34 pm

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Wed 5/13

1:00 am-11:59 am

2 stops10h 59m

$362

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sat 6/20

5:00 pm-11:43 pm

1 stop6h 43m

San Juan Luis Munoz Marin Intl

Thu 6/25

7:30 am-6:33 pm

1 stop11h 03m

$366

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 5/31

6:05 am-1:20 pm

1 stop7h 15m

San Juan Luis Munoz Marin Intl

Sat 6/6

6:15 am-5:05 pm

1 stop10h 50m

$375

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 7/19

6:05 am-6:10 pm

1 stop12h 05m

San Juan Luis Munoz Marin Intl

Mon 8/10

6:30 am-3:50 pm

2 stops9h 20m

$399
Quickest round-trip

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Fri 5/8

7:00 am-1:45 pm

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Tue 5/12

7:40 am-3:38 pm

1 stop7h 58m

$410

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 6/29

4:10 pm-1:20 am

2 stops9h 10m

San Juan Luis Munoz Marin Intl

Fri 7/3

7:00 am-6:20 pm

1 stop11h 20m

$416

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 5/18

12:40 pm-11:25 pm

2 stops10h 45m

San Juan Luis Munoz Marin Intl

Tue 6/9

6:00 am-12:20 pm

1 stop6h 20m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from Reagan-National to Luis Munoz Marin Intl

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 Reagan-National to Luis Munoz Marin Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
BudgetAirPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport 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 Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport 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 Reagan-National to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Reagan-National with our price prediction graph.
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 Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to Luis Munoz Marin Intl. Price data was last updated on April 17, 2026.

The best time to book flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport (average of $290). Flying from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport in August is currently the most expensive (average of $492). 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.

What is the cheapest time of day to fly from DCA to SJU?

Find hourly flight availability from Reagan-National to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 22, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport as you normally would.

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated April 22, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andJetBlue from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,328 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,625 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
JetBlue
7.2
Good
2,948 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,647 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
2,982 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

    Departing from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport will take you 6h 45m. Airlines will cover a distance of 1557 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport round-trip?

    Cheapflights users have booked flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport round-trip from $103. Other airlines that can offer you cheap pricing are Spirit Airlines, from $113, and Delta, from $142. Frontier is 75% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport are Delta ($68), Southwest ($82), and Frontier ($95).

  • What are the cheapest flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

    While on average a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport is generally $360, our data shows the cheapest flight currently is $128. When looking at the most popular route, (Washington, D.C. Reagan-National - San Juan Luis Munoz Marin Intl), you can expect to pay $266 for that flight.

  • Can I find deals for flights from Reagan-National to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Luis Munoz Marin Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Reagan-National to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Reagan-National to Luis Munoz Marin Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport (average of $290). Flying from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport in August is currently the most expensive (average of $492). 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.

See more FAQs

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Fajardo
Dorado
Luquillo
Rio Grande
Humacao
Bayamón

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Alternative routes for Reagan-National to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Luis Munoz Marin Intl flights
Baltimore to Luis Munoz Marin Intl flights

Top 7 airlines flying from Reagan-National to Luis Munoz Marin Intl

Discover the top 7 airlines that operate flights from Reagan-National to Luis Munoz Marin Intl. 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 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$103Average$386FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$113Average$305FlexibilityNo cancel feeOn-time65%
DeltaCheapest$142Average$419FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$218Average$426FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$220Average$420FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$245Average$348FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$250Average$430FlexibilityNo cancel feeOn-time69%

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