Find cheap flights from Harlingen to Washington Dulles Airport from $336

In the last 3 days, the lowest price for a flight from Harlingen, Texas to Washington, D.C. Dulles Intl Airport was $336 for a one-way ticket and $356 for a round-trip.

Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

Harlingen airport is called Harlingen Valley Intl and the only airport in Washington Dulles Airport is Washington, D.C. Dulles Intl.

We unfortunately don’t have that data for this specific route.

oneworld, and Star Alliance are the airline alliances operating flights between Harlingen and Washington Dulles Airport, with oneworld being the most commonly used for this route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Harlingen to Washington Dulles Airport.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Harlingen is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Harlingen with another airline. Booking your flights between Harlingen and IAD can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Harlingen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.