How does KAYAK find such low prices on flights from District of Columbia to Harlingen?

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 District of Columbia to Harlingen.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Harlingen?

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

What is the Hacker Fare option on flights from District of Columbia to Harlingen?

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 Harlingen with an airline and back to District of Columbia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to Harlingen?

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 Harlingen from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$230 CHEAP FLIGHTS from District of Columbia to Harlingen

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from District of Columbia to Harlingen

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from District of Columbia to Harlingen

Wed, Dec 2 - Wed, Dec 9

7:14 am - 1:54 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

7h 40m1 stop Dallas/Fort Worth

2:24 pm - 11:30 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

8h 06m1 stop Dallas/Fort Worth

$297American Airlines

Wed, Dec 2 - Wed, Dec 9

11:55 am - 6:10 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 15m1 stop Dallas/Fort Worth

10:44 am - 6:59 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 15m1 stop Dallas/Fort Worth

$297American Airlines

Thu, Nov 26 - Thu, Dec 3

10:58 am - 4:01 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 03m1 stop Houston George Bush Intcntl

2:00 pm - 10:09 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 09m1 stop Houston George Bush Intcntl

$317United Airlines

Thu, Feb 25 - Tue, Mar 2

11:40 am - 5:20 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 40m1 stop Houston Hobby

7:00 am - 1:05 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 05m1 stop Houston Hobby

$359Southwest

Wed, Dec 2 - Wed, Dec 9

7:14 am - 1:54 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

7h 40m1 stop Dallas/Fort Worth

2:24 pm - 11:30 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

8h 06m1 stop Dallas/Fort Worth

$359American Airlines

Thu, Feb 25 - Tue, Mar 2

7:16 am - 2:16 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 00m1 stop Dallas/Fort Worth

10:28 am - 5:03 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 35m1 stop Dallas/Fort Worth

$359American Airlines

Wed, Dec 2 - Wed, Dec 9

11:55 am - 6:10 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 15m1 stop Dallas/Fort Worth

10:44 am - 6:59 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 15m1 stop Dallas/Fort Worth

$359American Airlines

Wed, Feb 24 - Mon, Mar 1

3:40 pm - 9:05 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 25m1 stop Austin Bergstrom

9:40 am - 8:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

10h 15m1 stop Dallas Love Field

$364Southwest

Wed, Dec 2 - Wed, Dec 9

7:26 am - 1:37 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

7h 11m1 stop Minneapolis St Paul

2:27 pm - 12:41 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

9h 14m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$364Delta

Mon, Nov 16 - Thu, Nov 19

2:25 pm - 7:47 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 22m1 stop Houston George Bush Intcntl

5:05 am - 11:47 amHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 42m1 stop Houston George Bush Intcntl

$394United Airlines

Recent last minute flight deals from District of Columbia to Harlingen

Sat, Oct 31 - Mon, Nov 2

6:15 am - 11:10 amDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 55m1 stop Houston Hobby

4:45 pm - 11:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

6h 10m1 stop Houston Hobby

$486Southwest

Sat, Oct 31 - Mon, Nov 2

6:15 am - 11:10 amDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 55m1 stop Houston Hobby

1:00 pm - 8:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

6h 55m2 stops Houston Hobby Dallas Love Field

$491Southwest

Thu, Nov 5 - Sun, Nov 8

7:23 am - 1:23 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

7h 00m1 stop Minneapolis St Paul

2:13 pm - 11:26 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

8h 13m1 stop Minneapolis St Paul

$499Delta

Thu, Nov 5 - Sun, Nov 8

6:05 am - 1:23 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 18m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

2:13 pm - 11:26 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

8h 13m1 stop Minneapolis St Paul

$504Delta

Thu, Nov 5 - Sun, Nov 8

7:23 am - 1:23 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

7h 00m1 stop Minneapolis St Paul

2:13 pm - 12:42 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

9h 29m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$504Delta

Thu, Nov 5 - Sun, Nov 8

6:05 am - 1:23 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 18m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

2:13 pm - 11:20 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

8h 07m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County

$509Delta

Sat, Oct 31 - Mon, Nov 2

9:35 am - 5:35 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

9h 00m2 stops Atlanta Hartsfield-Jackson Houston Hobby

1:00 pm - 8:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

6h 55m2 stops Houston Hobby Dallas Love Field

$512Southwest

Thu, Nov 5 - Wed, Nov 11

6:05 am - 1:23 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 18m1 stop Minneapolis St Paul

2:18 pm - 11:37 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 19m1 stop Minneapolis St Paul

$516Delta

Wed, Nov 4 - Sat, Nov 14

8:34 am - 1:21 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

5h 47m1 stop Houston George Bush Intcntl

5:05 am - 11:28 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 23m1 stop Houston George Bush Intcntl

$545United Airlines

Tue, Nov 3 - Sat, Nov 14

6:00 am - 1:21 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 21m1 stop Houston George Bush Intcntl

1:59 pm - 8:49 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 50m1 stop Houston George Bush Intcntl

$545United Airlines

Useful Info

Low season	July
High season	March

Best time to beat the crowds but there is an average 36% increase in price.

Most popular time to fly with an average 6% increase in price.

How does KAYAK find such low prices on flights from District of Columbia to Harlingen?
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 District of Columbia to Harlingen.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Harlingen?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from District of Columbia to Harlingen?
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 Harlingen with an airline and back to District of Columbia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to Harlingen?
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 Harlingen from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.