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.

$112 CHEAP FLIGHTS from District of Columbia to Harlingen

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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

11:40 am - 3:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 10m1 stop Houston Hobby

7:25 am - 3:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 30m1 stop Austin Bergstrom

$236Southwest

Wed, Dec 2 - Thu, Dec 10

6:05 am - 12:10 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 05m1 stop Houston Hobby

7:25 am - 3:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 30m1 stop Austin Bergstrom

$238Southwest

Wed, Dec 2 - Wed, Dec 9

2:40 pm - 9:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 10m2 stops Lambert-St Louis Houston Hobby

7:25 am - 3:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 30m1 stop Austin Bergstrom

$241Southwest

Wed, Dec 2 - Thu, Dec 10

2:40 pm - 9:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 10m2 stops Lambert-St Louis Houston Hobby

7:25 am - 3:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 30m1 stop Austin Bergstrom

$243Southwest

Fri, Feb 5 - Sat, Feb 13

12:40 pm - 7:32 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 52m1 stop Houston George Bush Intcntl

9:20 am - 3:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 35m1 stop Houston George Bush Intcntl

$252United Airlines

Wed, Dec 2 - Wed, Dec 9

2:40 pm - 9:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 10m2 stops Lambert-St Louis Houston Hobby

7:25 am - 9:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

13h 30m2 stops Austin Bergstrom Atlanta Hartsfield-Jackson

$252Southwest

Thu, Dec 3 - Thu, Dec 10

11:40 am - 3:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 10m1 stop Houston Hobby

4:30 pm - 11:00 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 30m1 stop Houston Hobby

$252Southwest

Thu, Dec 3 - Thu, Dec 10

8:25 am - 3:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 25m2 stops Lambert-St Louis Houston Hobby

4:30 pm - 11:00 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 30m1 stop Houston Hobby

$258Southwest

Fri, Oct 30 - Mon, Nov 2

6:05 am - 12:15 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 10m1 stop Houston Hobby

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

6h 10m1 stop Houston Hobby

$266Southwest

Sat, Oct 31 - Sun, Nov 1

12:50 pm - 7:47 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 57m1 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

$291United Airlines

Recent last minute flight deals from District of Columbia to Harlingen

Fri, Sep 25 - Mon, Sep 28

3:02 pm - 7:44 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

5h 42m1 stop Houston George Bush Intcntl

5:18 pm - 12:30 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

6h 12m1 stop Houston George Bush Intcntl

$499United Airlines

Mon, Sep 21 - Tue, Sep 22

3:02 pm - 7:39 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

5h 37m1 stop Houston George Bush Intcntl

5:18 pm - 11:55 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 37m1 stop Houston George Bush Intcntl

$506United Airlines

Mon, Sep 21 - Wed, Sep 23

3:02 pm - 9:52 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

7h 50m1 stop Houston George Bush Intcntl

5:18 pm - 12:30 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

6h 12m1 stop Houston George Bush Intcntl

$506United Airlines

Thu, Sep 24 - Thu, Oct 1

12:55 pm - 5:15 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 20m1 stop Houston Hobby

5:30 am - 12:00 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 30m1 stop Houston Hobby

$529Southwest

Thu, Sep 24 - Thu, Oct 1

3:02 pm - 7:44 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

5h 42m1 stop Houston George Bush Intcntl

5:18 pm - 12:30 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

6h 12m1 stop Houston George Bush Intcntl

$529United Airlines

Thu, Sep 24 - Thu, Oct 1

12:55 pm - 5:15 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 20m1 stop Houston Hobby

5:30 am - 2:35 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 05m2 stops Houston Hobby Dallas Love Field

$534Southwest

Thu, Sep 24 - Thu, Oct 1

9:35 am - 3:40 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 05m2 stops Dallas Love Field Austin Bergstrom

5:30 am - 2:35 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 05m2 stops Houston Hobby Dallas Love Field

$589Southwest

Fri, Sep 25 - Sun, Sep 27

3:02 pm - 9:52 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

7h 50m1 stop Houston George Bush Intcntl

5:18 pm - 12:30 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

6h 12m1 stop Houston George Bush Intcntl

$589United Airlines

Thu, Sep 24 - Thu, Oct 1

6:14 am - 4:06 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

10h 52m2 stops Charlotte Douglas Dallas/Fort Worth

10:45 am - 5:51 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

6h 06m1 stop Dallas/Fort Worth

$766American Airlines

Thu, Sep 24 - Thu, Oct 1

6:14 am - 4:06 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

10h 52m2 stops Charlotte Douglas Dallas/Fort Worth

10:45 am - 10:51 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

11h 06m2 stops Dallas/Fort Worth Charlotte Douglas

$772American Airlines

Useful Info

Low season	July
High season	March

Best time to beat the crowds but there is an average 40% increase in price.

Most popular time to fly with an average 8% 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.