Book flights from Liberia, Costa Rica, to Baltimore/Washington (BWI) with Southwest Airlines®. It’s easy to find the Daniel Oduber Quiros International Airport to Baltimore/Washington International Airport/Thurgood Marshall flight to make your booking and travel a breeze. Whether you’re traveling for business or pleasure, solo or with the whole family, you’ll enjoy flying Southwest®. Have flexible travel dates? Plug them into the Low Fare Calendar and see the lowest fares available within your travel window. You may also want to browse Southwest Vacations® to see special offers and package deals on flights, hotels, rental cars, and more.
Explore your options and book your Liberia, Costa Rica, to Baltimore/Washington (BWI) flight with Southwest today!
Best Airline in the U.S. and North America & Best Economy Class and Low Cost Airline in North America.
Re-entry into the United States: All Passengers traveling from an international destination will require proof and verification of a negative COVID-19 test obtained within three days of travel or will be denied boarding. Visit our Coronavirus Travel Information page for more information.
One child over 14 days and under two (2) years of age, not occupying a seat, may be carried free of charge when traveling with an adult (12 years of age or older). Learn more.
Customers flying with a pet are subject to a pet fare. To learn more about traveling with your furry friend, explore the Southwest® pet policy.
Minors under the age of 18 are not permitted to fly unaccompanied on international flights or any itinerary that includes an international flight. Learn more.
Start packing! Every ticketed Customer’s first two checked bags are free. Learn more.
At Southwest, we know it takes more than great deals on Baltimore/Washington (BWI) airfares and convenient scheduling options to make your trip memorable. So from booking to boarding, we offer services and features designed to make your travel from Liberia, Costa Rica, to Baltimore/Washington (BWI) the best it can be. Find out more about the Southwest Experience before you book your Daniel Oduber Quiros International Airport to Baltimore/Washington International Airport/Thurgood Marshall flight.
Flying with Southwest is simple and fun, no matter which of our dozens of exciting destinations you choose. And when you search for your next flight to Baltimore/Washington (BWI), you know you won’t be surprised at checkout. Low fares, no hidden fees. That’s our Transfarency® promise. And, as always, bags fly free. Enroll in our Click 'N Save® emails and stay up to date on our latest flight deals. Looking for tours, activities, and more hidden gems to add to your Baltimore/Washington (BWI) adventure? Explore getaways with Southwest® and earn Rapid Rewards when you book.
1First and second checked bags. Weight and size limits apply.
2Fare difference may apply.
To find the cheapest day and time to fly Liberia, Costa Rica, to Baltimore/Washington (BWI) with Southwest, check out our Low Fare Calendar.
You can rent a car at Baltimore/Washington International Airport/Thurgood Marshall—book yours with your flight.
Yes! Flights from Liberia, Costa Rica, to Baltimore/Washington (BWI)—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight here.
Check out the Southwest Airlines® FAQs for answers about everything Southwest.
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