HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$246+ Cheap flights from Harlingen, TX to Seattle (HRL - SEA)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SEA
Dec 10 — Dec 171
Tue 12/10
Tue 12/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Harlingen to Seattle with Cheapflights

1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Harlingen to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 5, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

February

Average price

$437

Round-trip from

$246
(American Airlines)
Provider with most accurate pricing for Harlingen Valley Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harlingen Valley Intl-Seattle/Tacoma Intl flights.
Search Deals
High demand for flights, 34% potential price rise
Search Deals
Best time to find cheap flights, 34% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals
From Harlingen Valley Intl to Seattle/Tacoma Intl
Search Deals

Find flight deals from Harlingen to Seattle

Best flights from Harlingen to Seattle
Discover carefully curated flight deals from Harlingen to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 5, 2024.

This American Airlines deal was found by Cheapflights users on 12/5. 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.
Wed 1/154:29 pmHRL - SEA
1 stop8h 42mAmerican Airlines
Sun 1/263:49 pmSEA - HRL
1 stop6h 25mAmerican Airlines
Deal found 12/5$246
This United deal was found by Cheapflights users on 12/5. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/155:22 pmHRL - SEA
1 stop7h 38mUnited Airlines
Sun 1/269:20 amSEA - HRL
2 stops12h 16mUnited Airlines
Deal found 12/5$341

Find flights from Harlingen to Seattle within your budget

Customize your flight search to find flights from Harlingen to Seattle 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 2,924,186 searches. Data last updated December 5, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Wed 1/15

4:29 pm-11:11 pm

1 stop8h 42m

Seattle/Tacoma Intl

Sun 1/26

3:49 pm-12:14 am

1 stop6h 25m

$246

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Wed 1/15

5:22 pm-11:00 pm

1 stop7h 38m

Seattle/Tacoma Intl

Sun 1/26

9:20 am-11:36 pm

2 stops12h 16m

$341

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sat 12/21

11:53 am-10:43 pm

1 stop12h 50m

Seattle/Tacoma Intl

Fri 12/27

11:59 pm-10:55 am

1 stop8h 56m

$630

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sat 12/21

4:40 pm-12:50 am

2 stops10h 10m

Seattle/Tacoma Intl

Fri 12/27

9:50 am-11:05 pm

2 stops11h 15m

$682

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sat 12/21

11:53 am-10:43 pm

1 stop12h 50m

Seattle/Tacoma Intl

Fri 12/27

6:11 am-10:55 am

2 stops26h 44m

$860

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sun 1/5

7:15 am-9:53 am

2 stops28h 38m

$461

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sun 1/5

7:59 pm-12:57 am

1 stop6h 58m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

Compare providers for flights from Harlingen to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harlingen to Seattle in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Harlingen, Texas-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen, Texas-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Harlingen, Texas-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen, Texas-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Harlingen to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Harlingen with our price prediction graph.
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.

Travel insights for flights from Harlingen to Seattle

Get recent, data-driven insights about flights from Harlingen to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Harlingen, Texas to Seattle?

Currently, January is the cheapest month in which you can book a flight from Harlingen, Texas to Seattle (average of $238). Flying from Harlingen, Texas to Seattle in July is currently the most expensive (average of $411). 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.

What is the cheapest time of day to fly from HRL to SEA?

Find hourly flight availability from Harlingen to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 5, 2024.

It’s typically best to fly out from Harlingen, Texas to Seattle in the morning. Doing so could potentially save you 32% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated December 5, 2024.
United Airlines
7.4
Good
9,134 reviews

Food

6.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

United Airlines
7.4
Good
9,134 reviews
United Airlines
7.4
Good
9,134 reviews

Food

6.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
9,134 reviews

Food

6.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Harlingen, Texas to Seattle round-trip?

    American Airlines, at $246, was found to be the cheapest airline from Harlingen, Texas to Seattle. An alternate airline flying to your destination would be United Airlines. American Airlines is currently priced 46% below the average price you’ll pay for this route.

  • Can I find deals for flights from Harlingen to Seattle that include hotel bookings?

    Yes. In addition to deals on Harlingen to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harlingen to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Seattle.

  • Can I find deals for business class flights from Harlingen to Seattle?

    Yes. Cheapflights offers flight deals from Harlingen to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Harlingen, Texas to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Harlingen, Texas to Seattle (average of $238). Flying from Harlingen, Texas to Seattle in July is currently the most expensive (average of $411). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Harlingen to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Seattle flights
Hobby to Seattle flights
George Bush Intcntl to Seattle flights
Austin to Seattle flights
Dallas/Fort Worth to Portland flights
Hobby to Portland flights
George Bush Intcntl to Portland flights
Love Field to Seattle flights
San Antonio to Seattle flights
Dallas/Fort Worth to Spokane flights
Austin to Portland flights
Love Field to Portland flights
El Paso to Seattle flights
Austin to Spokane flights
San Antonio to Portland flights
San Antonio to Spokane flights
Love Field to Spokane flights
Hobby to Spokane flights
George Bush Intcntl to Spokane flights
McAllen to Seattle flights
Corpus Christi to Seattle flights
El Paso to Portland flights
Dallas/Fort Worth to Pasco flights
Midland to Seattle flights
Amarillo to Seattle flights
Laredo to Seattle flights
Waco to Seattle flights
Hobby to Pasco flights
George Bush Intcntl to Pasco flights
Lubbock to Seattle flights
Love Field to Pasco flights
Austin to Wenatchee flights
San Antonio to Pasco flights
Austin to Pasco flights
Dallas/Fort Worth to Wenatchee flights
El Paso to Spokane flights
Corpus Christi to Portland flights
Lubbock to Portland flights
Brownsville to Seattle flights
Killeen to Portland flights
McAllen to Portland flights
Dallas/Fort Worth to Bellingham flights
El Paso to Bellingham flights
Longview to Seattle flights
Lubbock to Spokane flights
Laredo to Portland flights
Texarkana to Seattle flights
College Station to Portland flights
McAllen to Spokane flights

Top 2 airlines flying from Harlingen to Seattle

Discover the top 2 airlines that operate flights from Harlingen to Seattle. 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 2,924,186 searches. Data last updated December 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$265Average$499FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$295Average$465FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.