$174+ Cheap flights from Harlingen (HRL) to Washington
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SEA
Dec 10 — Dec 171
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Harlingen to WashingtonExplore the most affordable flight options available from Harlingen to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
Explore the most affordable flight options available from Harlingen to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:39 pm -
1 stop8h 12m
Sat 12/1211:59 pm -
1 stop9h 15m
Deal found 11/6![United Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:00 pm -
2 stops9h 21m
Mon 12/147:30 pm -
2 stops13h 44m
Deal found 11/8![United Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:39 pm -
1 stop8h 12m
Mon 12/1411:59 pm -
1 stop9h 15m
Deal found 11/9![United Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:50 pm -
2 stops10h 05m
Sat 12/1210:55 am -
2 stops8h 15m
Deal found 11/6![Southwest logo]()
$378
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:39 pm -
1 stop8h 12m
Sun 12/67:00 am -
1 stop6h 50m
Deal found 11/9![United Airlines logo]()
$383
This Southwest deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1212:45 pm -
2 stops11h 05m
Thu 12/1710:45 am -
2 stops8h 45m
Deal found 11/10![Southwest logo]()
$397
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:55 pm -
2 stops8h 55m
Sun 12/131:55 pm -
2 stops7h 40m
Deal found 11/8![Southwest logo]()
$398
This Southwest deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/134:45 pm -
2 stops10h 00m
Thu 12/1710:45 am -
2 stops8h 45m
Deal found 11/10![Southwest logo]()
$418
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/64:45 pm -
2 stops10h 00m
Sun 12/1310:45 am -
2 stops8h 45m
Deal found 11/8![Southwest logo]()
$419
This American Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/82:24 pm -
1 stop8h 31m
Fri 12/111:03 pm -
1 stop7h 51m
Deal found 11/5![American Airlines logo]()
$424
This Southwest deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:20 am -
2 stops9h 10m
Fri 12/115:25 am -
2 stops9h 50m
Deal found 11/5![Southwest logo]()
$462
This American Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:50 pm -
1 stop8h 01m
Tue 12/11:10 pm -
1 stop8h 03m
Deal found 11/7![American Airlines logo]()
$567
Best flights from Harlingen to WashingtonDiscover carefully curated flight deals from Harlingen to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
Discover carefully curated flight deals from Harlingen to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/194:35 pm -
1 stop8h 19m
Sat 1/238:30 am -
2 stops11h 20m
Deal found 11/6![United Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/191:00 pm -
2 stops11h 40m
Sat 1/236:45 am -
2 stops10h 15m
Deal found 11/6![Southwest logo]()
$357
This American Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/85:40 am -
2 stops13h 01m
Fri 12/111:03 pm -
1 stop7h 51m
Deal found 11/5![American Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:39 pm -
1 stop8h 12m
Sat 12/127:30 pm -
2 stops13h 44m
Deal found 11/6![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:55 pm -
2 stops8h 55m
Sun 12/131:55 pm -
2 stops7h 40m
Deal found 11/8![Southwest logo]()
$398
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:00 pm -
2 stops9h 58m
Sun 12/1311:59 pm -
1 stop9h 15m
Deal found 11/8![United Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:55 pm -
2 stops8h 55m
Thu 12/178:30 am -
1 stop11h 00m
Deal found 11/10![Southwest logo]()
$419
This Southwest deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:50 pm -
2 stops12h 00m
Mon 12/149:25 am -
2 stops10h 25m
Deal found 11/9![Southwest logo]()
$429
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/307:00 am -
1 stop8h 13m
Wed 2/37:00 am -
1 stop6h 53m
Deal found 11/7![United Airlines logo]()
$467
This Southwest deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1310:45 am -
1 stop10h 30m
Thu 12/1710:45 am -
2 stops8h 45m
Deal found 11/10![Southwest logo]()
$439
This United Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/209:20 am -
2 stops10h 05m
Fri 1/229:15 am -
2 stops10h 44m
Deal found 11/5![United Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:20 am -
2 stops9h 10m
Fri 12/115:25 am -
2 stops9h 50m
Deal found 11/5![Southwest logo]()
$462
This American Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:46 pm -
2 stops20h 39m
Thu 12/31:03 pm -
1 stop7h 51m
Deal found 11/7![American Airlines logo]()
$833
This United Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:39 pm -
3 stops27h 14m
Fri 12/111:49 pm -
2 stops30h 10m
Deal found 11/5![United Airlines logo]()
$659
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:25 pm -
2 stops19h 13m
Fri 12/49:00 am -
2 stops10h 59m
Deal found 11/7![United Airlines logo]()
$752
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:10 am -
2 stops31h 19m
Fri 12/49:00 am -
2 stops10h 59m
Deal found 11/7![United Airlines logo]()
$752
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:05 am -
2 stops17h 52m
Fri 12/49:00 am -
2 stops10h 59m
Deal found 11/7![United Airlines logo]()
$838
Last-minute flights from Harlingen to WashingtonDiscover last-minute flight deals from Harlingen to Washington. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from Harlingen to Washington. Data last updated November 10, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:50 pm -
1 stop8h 01m
Tue 12/11:10 pm -
1 stop8h 03m
Deal found 11/7![American Airlines logo]()
$567
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:39 pm -
1 stop8h 12m
Sun 12/67:00 am -
1 stop6h 50m
Deal found 11/9![United Airlines logo]()
$383
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/64:45 pm -
2 stops10h 00m
Sun 12/1310:45 am -
2 stops8h 45m
Deal found 11/8![Southwest logo]()
$419
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:39 pm -
1 stop8h 12m
Sat 12/1211:59 pm -
1 stop9h 15m
Deal found 11/6![United Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:39 pm -
1 stop8h 12m
Mon 12/1411:59 pm -
1 stop9h 15m
Deal found 11/9![United Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:50 pm -
2 stops10h 05m
Sat 12/1210:55 am -
2 stops8h 15m
Deal found 11/6![Southwest logo]()
$378
This American Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/82:24 pm -
1 stop8h 31m
Fri 12/111:03 pm -
1 stop7h 51m
Deal found 11/5![American Airlines logo]()
$424
This Southwest deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:20 am -
2 stops9h 10m
Fri 12/115:25 am -
2 stops9h 50m
Deal found 11/5![Southwest logo]()
$462
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:00 pm -
2 stops9h 21m
Mon 12/147:30 pm -
2 stops13h 44m
Deal found 11/8![United Airlines logo]()
$372
This Southwest deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1212:45 pm -
2 stops11h 05m
Thu 12/1710:45 am -
2 stops8h 45m
Deal found 11/10![Southwest logo]()
$397
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:55 pm -
2 stops8h 55m
Sun 12/131:55 pm -
2 stops7h 40m
Deal found 11/8![Southwest logo]()
$398
This Southwest deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/134:45 pm -
2 stops10h 00m
Thu 12/1710:45 am -
2 stops8h 45m
Deal found 11/10![Southwest logo]()
$418
One-way flights from Harlingen to WashingtonSearch for one-way flight options from Harlingen to Washington. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
Search for one-way flight options from Harlingen to Washington. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/52:00 pm -
1 stop7h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![United Airlines logo]()
$174
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/316:00 am -
2 stops9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Southwest logo]()
$189
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/64:39 pm -
1 stop8h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![United Airlines logo]()
$195
This Southwest deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/64:45 pm -
2 stops10h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Southwest logo]()
$200
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/174:45 pm -
2 stops10h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Southwest logo]()
$210
This United Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:10 am -
2 stops10h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![United Airlines logo]()
$261
This Mytrip deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1711:46 am -
3 stops26h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$371
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/317:18 am -
3 stops15h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![United Airlines logo]()
$429
Find flight deals from Harlingen to Washington
Keep the following information in mind while searching for Harlingen to Washington flight deals. Data was last updated November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $347 (United Airlines) |
One-way from | $174 (United Airlines) |
Popular in | January |
Cheapest in | February |
Average price | $375 |
Cheapflights Fare Finder
Customize your flight search to find flights from Harlingen to Washington 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, Cheapflights users made 7,457,451 searches. Data last updated November 10, 2026.
Use the filters below to find and compare flights from Harlingen to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
HarlingenSeattle
HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl
HRLSEA
Harlingen Valley Intl
Sat 12/5
2:00 pm-7:32 pm
1 stop7h 32m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$174
HarlingenSeattle
HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl
HRLSEA
Harlingen Valley Intl
Wed 3/31
6:00 am-1:15 pm
2 stops9h 15m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$189
HarlingenSeattle
HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl
HRLSEA
Harlingen Valley Intl
Sun 12/6
4:39 pm-10:51 pm
1 stop8h 12m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$195
HarlingenSeattle
HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl
HRLSEA
Harlingen Valley Intl
Sun 12/6
4:45 pm-12:45 am
2 stops10h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$200
HarlingenSeattle
HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl
HRLSEA
Harlingen Valley Intl
Thu 12/17
4:45 pm-12:45 am
2 stops10h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$210
HarlingenSpokane
HRL Harlingen Valley Intl - GEG Spokane
HRLGEG
Harlingen Valley Intl
Wed 11/18
7:10 am-3:25 pm
2 stops10h 15m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$261
HarlingenSeattle
HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl
HRLSEA
Harlingen Valley Intl
Tue 1/19
4:35 pm-10:54 pm
1 stop8h 19m
Seattle/Tacoma Intl
Sat 1/23
8:30 am-9:50 pm
2 stops11h 20m
$352
HarlingenSeattle
HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl
HRLSEA
Harlingen Valley Intl
Tue 1/19
1:00 pm-10:40 pm
2 stops11h 40m
Seattle/Tacoma Intl
Sat 1/23
6:45 am-7:00 pm
2 stops10h 15m
$357
HarlingenSeattle
HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl
HRLSEA
Harlingen Valley Intl
Mon 12/7
4:39 pm-10:51 pm
1 stop8h 12m
Seattle/Tacoma Intl
Sat 12/12
7:30 pm-11:14 am
2 stops13h 44m
$367
HarlingenSeattle
HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl
HRLSEA
Harlingen Valley Intl
Sat 12/12
2:00 pm-9:58 pm
2 stops9h 58m
Seattle/Tacoma Intl
Sun 12/13
11:59 pm-11:14 am
1 stop9h 15m
$388
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from Harlingen to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Harlingen with our price prediction graph.
HRL-SEA
HRL-GEG
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Harlingen to Washington
HRL-USWA
HRL-SEA
HRL-GEG
What is the cheapest month to book a flight from Harlingen to State of Washington?
Currently, February is the cheapest month in which you can book a flight from Harlingen to State of Washington (average of $263). Flying from Harlingen to State of Washington in January is currently the most expensive (average of $604). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated November 10, 2026.
Peruse reviews from past customers who have flown with Southwest and American Airlines from Harlingen to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Overall
8.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Crew
8.6
Overall
8.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Crew
8.6
Overall
8.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from Harlingen to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Harlingen to Washington
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Complete your trip
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Harlingen and Washington flights
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Harlingen to Washington flights
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Top 2 airlines flying from Harlingen to Washington
Discover the top 2 airlines that operate flights from Harlingen to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$225 | Average$384 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$297 | Average$423 | FlexibilityNo cancel fee | On-time63% |