Cheap flights from Washington, D.C. to San José from $126

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to San José departing on 5/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Washington, D.C. to San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
4:10 am - 8:45 am
IAD
-
SJO
6h 35m
1 stop
Avianca Logo
5:25 pm - 2:15 am
SJO
-
IAD
6h 50m
1 stop
$288Avianca
Thu, Apr 16 - Thu, Apr 23
Avianca Logo
4:10 am - 8:45 am
IAD
-
SJO
6h 35m
1 stop
Avianca Logo
3:10 pm - 2:45 am
SJO
-
IAD
9h 35m
1 stop
$289Avianca
Sat, Apr 25 - Sat, May 2
Southwest Logo
7:10 am - 12:10 pm
BWI
-
SJO
7h 00m
1 stop
Southwest Logo
1:15 pm - 8:00 pm
SJO
-
BWI
4h 45mnonstop
$311Southwest
Mon, May 4 - Sat, May 9
Southwest Logo
8:40 am - 11:25 am
BWI
-
SJO
4h 45mnonstop
Southwest Logo
9:00 am - 7:00 pm
SJO
-
BWI
8h 00m
1 stop
$315Southwest
Sat, May 9 - Wed, May 13
Copa Airlines Logo
4:49 pm - 9:05 am
BWI
-
SJO
18h 16m
1 stop
Copa Airlines Logo
5:46 am - 3:17 pm
SJO
-
BWI
7h 31m
1 stop
$316Copa Airlines
Fri, Apr 17 - Sat, Apr 25
United Airlines Logo
12:59 pm - 10:39 pm
DCA
-
SJO
11h 40m
1 stop
United Airlines Logo
12:30 am - 11:56 am
SJO
-
DCA
9h 26m
1 stop
$318United Airlines
Thu, May 28 - Fri, Jun 5
United Airlines Logo
8:10 am - 7:37 pm
BWI
-
SJO
13h 27m
1 stop
United Airlines Logo
11:13 am - 10:44 pm
SJO
-
BWI
9h 31m
1 stop
$319United Airlines
Sat, Apr 11 - Wed, Apr 22
American Airlines Logo
1:45 pm - 9:36 pm
DCA
-
SJO
9h 51m
1 stop
American Airlines Logo
12:35 pm - 11:59 pm
SJO
-
DCA
9h 24m
1 stop
$320American Airlines
Sat, May 9 - Wed, May 13
Copa Airlines Logo
4:49 pm - 7:08 am
BWI
-
SJO
16h 19m
1 stop
Copa Airlines Logo
5:46 am - 3:17 pm
SJO
-
BWI
7h 31m
1 stop
$321Copa Airlines
Mon, Apr 13 - Fri, Apr 17
American Airlines Logo
8:17 pm - 11:56 am
BWI
-
SJO
17h 39m
2 stops
American Airlines Logo
12:50 pm - 10:01 am
SJO
-
BWI
19h 11m
2 stops
$323American Airlines
Mon, Aug 3 - Thu, Aug 13

Southwest flights from Washington, D.C. to San José

Our best Southwest deals on Washington, D.C. to San José flight tickets
Southwest
May 4
BWI7:10 amBaltimore/Washington
7h 00m
1 stop
SJO12:10 pmSan José Juan Santamaria Intl
May 9
SJO1:15 pmSan José Juan Santamaria Intl
4h 45m
BWI8:00 pmBaltimore/Washington
$311
Southwest
May 9
BWI8:40 amBaltimore/Washington
4h 45m
SJO11:25 amSan José Juan Santamaria Intl
May 13
SJO9:00 amSan José Juan Santamaria Intl
8h 00m
1 stop
BWI7:00 pmBaltimore/Washington
$315
Southwest
May 9
DCA6:10 amWashington, D.C. Reagan-National
8h 05m
1 stop
SJO12:15 pmSan José Juan Santamaria Intl
May 13
SJO9:00 amSan José Juan Santamaria Intl
11h 25m
1 stop
DCA10:25 pmWashington, D.C. Reagan-National
$321

United Airlines flights from Washington, D.C. to San José

Our best United Airlines deals on Washington, D.C. to San José flight tickets
United Airlines
May 28
DCA12:59 pmWashington, D.C. Reagan-National
11h 40m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
Jun 5
SJO12:30 amSan José Juan Santamaria Intl
9h 26m
1 stop
DCA11:56 amWashington, D.C. Reagan-National
$318
United Airlines
Apr 11
BWI8:10 amBaltimore/Washington
13h 27m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
Apr 22
SJO11:13 amSan José Juan Santamaria Intl
9h 31m
1 stop
BWI10:44 pmBaltimore/Washington
$319
United Airlines
May 3
DCA6:00 amWashington, D.C. Reagan-National
8h 21m
1 stop
SJO12:21 pmSan José Juan Santamaria Intl
May 7
SJO7:55 amSan José Juan Santamaria Intl
14h 03m
1 stop
DCA11:58 pmWashington, D.C. Reagan-National
$328

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to San José 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, momondo users made 832,500 searches. Data last updated March 21, 2026.
Use the filters below to find and compare flights from Washington, D.C. to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 4/16

4:10 am-8:45 am

1 stop6h 35m

San José Juan Santamaria Intl

Thu 4/23

5:25 pm-2:15 am

1 stop6h 50m

$288

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sat 4/25

4:10 am-8:45 am

1 stop6h 35m

San José Juan Santamaria Intl

Sat 5/2

3:10 pm-2:45 am

1 stop9h 35m

$289
Quickest round-trip

BaltimoreSan José

BWI - SJO

BWISJO

Baltimore/Washington

Mon 5/4

7:10 am-12:10 pm

1 stop7h 00m

San José Juan Santamaria Intl

Sat 5/9

1:15 pm-8:00 pm

Nonstop4h 45m

$311

BaltimoreSan José

BWI - SJO

BWISJO

Baltimore/Washington

Sat 5/9

8:40 am-11:25 am

Nonstop4h 45m

San José Juan Santamaria Intl

Wed 5/13

9:00 am-7:00 pm

1 stop8h 00m

$315

BaltimoreSan José

BWI - SJO

BWISJO

Baltimore/Washington

Fri 4/17

4:49 pm-9:05 am

1 stop18h 16m

San José Juan Santamaria Intl

Sat 4/25

5:46 am-3:17 pm

1 stop7h 31m

$316

Washington, D.C.San José

DCA - SJO

DCASJO

Washington, D.C. Reagan-National

Thu 5/28

12:59 pm-10:39 pm

1 stop11h 40m

San José Juan Santamaria Intl

Fri 6/5

12:30 am-11:56 am

1 stop9h 26m

$318

BaltimoreSan José

BWI - SJO

BWISJO

Baltimore/Washington

Sat 4/11

8:10 am-7:37 pm

1 stop13h 27m

San José Juan Santamaria Intl

Wed 4/22

11:13 am-10:44 pm

1 stop9h 31m

$319

Washington, D.C.San José

DCA - SJO

DCASJO

Washington, D.C. Reagan-National

Sat 5/9

1:45 pm-9:36 pm

1 stop9h 51m

San José Juan Santamaria Intl

Wed 5/13

12:35 pm-11:59 pm

1 stop9h 24m

$320

BaltimoreSan José

BWI - SJO

BWISJO

Baltimore/Washington

Mon 4/13

4:49 pm-7:08 am

1 stop16h 19m

San José Juan Santamaria Intl

Fri 4/17

5:46 am-3:17 pm

1 stop7h 31m

$321

BaltimoreSan José

BWI - SJO

BWISJO

Baltimore/Washington

Mon 8/3

8:17 pm-11:56 am

2 stops17h 39m

San José Juan Santamaria Intl

Thu 8/13

12:50 pm-10:01 am

2 stops19h 11m

$323

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San José from

How to get the cheapest flight ticket from Washington, D.C. to San José

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. and San José?

What is the cheapest month to fly to San José?

In general, October is the cheapest month to fly from Washington, D.C. to San José. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $276. If you don’t want to visit San José in October, then you should wait until September to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $285.

What is the cheapest day to depart on your flight to San José?

On average, the least expensive day to fly to San José from Washington, D.C. is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $346. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Washington, D.C. to San José on a Saturday will generally be more expensive and average around $602. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San José?

Our data shows that the cheapest Washington, D.C. to San José flights are usually those with departure times in the evening. Our users have found flights to San José in the evening for as low as $385. Flights in the morning are often more expensive with an average ticket price of $719.

What is the cheapest Washington, D.C. to San José Juan Santamaria Intl flight route?

Fly from Baltimore/Washington to San José Juan Santamaria Intl for the best Washington, D.C. - San José Juan Santamaria Intl flight prices

How far in advance should I book a flight to San José?

You are more likely to see cheaper flights to San José from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to San José for around $354 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José from Washington, D.C. for as low as $315 on momondo.

What cabin class options are available on Washington, D.C. to San José Juan Santamaria Intl flights?

There is only 1 cabin class available to choose from on Washington, D.C. to San José Juan Santamaria Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to San José flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. to San José.

How have Washington, D.C. to San José flight prices changed over time?

As of March 2026, prices for Washington, D.C. to San José flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. to San José

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to San José according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to San José (WAS to SJO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to San José

Best Price Found

$141

Fastest flight time

4h 40m

Direct flights

Mon, Wed, Fri and Sun

Airports in San José

1 airport
The best one-way flight to San José from Washington, D.C. in the past 72 hours is $141. The best round-trip flight deal from Washington, D.C. to San José found on momondo in the last 72 hours is $453.
The fastest flight from Washington, D.C. to San José takes 4h 40m
Direct flights go from Washington, D.C. to San José on Monday, Wednesday, Friday and Sunday. The only airline offering direct flights is Southwest.
There is 1 airport in San José. From Washington, D.C. there are direct flights to San José Juan Santamaria Intl (SJO).
  • How far is Washington, D.C. to San José Juan Santamaria Intl by plane?

    The straight-line distance from Washington, D.C. to San José Juan Santamaria Intl is 2047.5 mi. In terms of flight time, this usually takes a little over 4h 40m.

  • When did momondo last update prices for flights from Washington, D.C. to San José Juan Santamaria Intl Airport?

    Prices for flights from Washington, D.C. to San José Juan Santamaria Intl Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. to San José Juan Santamaria Intl Airport?

  • How old do you have to be to fly from Washington, D.C. to San José Juan Santamaria Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to San José Juan Santamaria Intl Airport.

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The travel and health documents you'll need for your trip to San José Juan Santamaria Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San José Juan Santamaria Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. to San José?

  • What is the most popular airline from Washington, D.C. to San José?

Best airlines flying from Washington, D.C. to San José

Compare and see reviews for airlines that fly from Washington, D.C. to San José with momondo
Airline
Rating
Free Cancellation
Price
Volaris El SalvadorPriceFrom $102Free CancellationRating
7.4
29 reviews
Search Volaris El Salvador flights
AviancaPriceFrom $132Free CancellationRating
6.5
2,503 reviews
Search Avianca flights
DeltaPriceFrom $136Free CancellationRating
7.9
8,313 reviews
Search Delta flights
Copa AirlinesPriceFrom $177Free CancellationRating
7.5
1,572 reviews
Search Copa Airlines flights
Spirit AirlinesPriceFrom $223Free CancellationRating
6.3
8,533 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
9,451 reviews
Search United Airlines flights
American AirlinesPriceFrom $237Free CancellationRating
7.1
11,488 reviews
Search American Airlines flights
SouthwestPriceFrom $256Free CancellationRating
8.0
4,325 reviews
Search Southwest flights
JetBluePriceFrom $308Free CancellationRating
7.2
2,908 reviews
Search JetBlue flights
  • Avianca Flights From Washington, D.C. to San José

    The lowest priced Avianca flight from Washington, D.C. to San José from the last 72 hours was $132. Generally, Avianca has 4 flights on this route every week with an average price of $341. Avianca is rated 6.5/10 by our users.

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Monteverde
Alajuela
Heredia
Dominical
San Gerardo de Dota
Santa Elena
Esterillos Este

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to San José?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to San José. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to San José with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San José from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to San José?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to San José.

I’m not ready to book a flight from Washington, D.C. to San José right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to San José flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Mon 4/20
Mon 4/27

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