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Cheap flights from Harrisburg to Seattle from $287

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Harrisburg to Seattle departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Harrisburg to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Harrisburg to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.
American Airlines Logo
6:20 pm - 11:50 pmMDT-SEA
8h 30m1 stop
American Airlines Logo
12:34 am - 11:16 amSEA-MDT
7h 42m1 stop
$287American Airlines
Find Deal
Wed, Aug 20 - Mon, Aug 25
United Airlines Logo
6:15 am - 11:50 amMDT-SEA
8h 35m1 stop
United Airlines Logo
12:20 am - 10:14 amSEA-MDT
6h 54m1 stop
$357United Airlines
Find Deal
Tue, Jul 1 - Mon, Jul 14
United Airlines Logo
6:15 am - 11:50 amMDT-SEA
8h 35m1 stop
United Airlines Logo
11:45 pm - 1:44 pmSEA-MDT
10h 59m2 stops
$362United Airlines
Find Deal
Tue, Jul 1 - Mon, Jul 7
United Airlines Logo
2:50 pm - 10:30 pmMDT-SEA
10h 40m2 stops
United Airlines Logo
5:35 pm - 9:35 amSEA-MDT
13h 00m2 stops
$367United Airlines
Find Deal
Wed, May 28 - Wed, Jun 4
United Airlines Logo
2:50 pm - 10:30 pmMDT-SEA
10h 40m2 stops
United Airlines Logo
12:35 pm - 9:35 amSEA-MDT
18h 00m3 stops
$372United Airlines
Find Deal
Wed, May 28 - Wed, Jun 4
American Airlines Logo
1:26 pm - 8:50 pmMDT-SEA
10h 24m1 stop
American Airlines Logo
11:55 pm - 12:46 pmSEA-MDT
9h 51m1 stop
$393American Airlines
Find Deal
Fri, Jun 27 - Wed, Jul 2
Delta Logo
5:00 pm - 10:22 pmMDT-SEA
8h 22m1 stop
Delta Logo
11:50 pm - 11:43 amSEA-MDT
8h 53m1 stop
$443Delta
Find Deal
Mon, Jun 23 - Fri, Jul 4
Delta Logo
5:00 pm - 7:55 amMDT-SEA
17h 55m1 stop
Delta Logo
11:50 pm - 11:43 amSEA-MDT
8h 53m1 stop
$497Delta
Find Deal
Sat, Jun 28 - Fri, Jul 4
Alaska Airlines Logo
6:00 am - 12:34 pmMDT-SEA
9h 34m1 stop
Alaska Airlines Logo
6:00 am - 6:06 pmSEA-MDT
9h 06m1 stop
$523Alaska Airlines
Find Deal
Wed, Jun 25 - Sat, Jul 5
Alaska Airlines Logo
6:31 pm - 11:24 pmMDT-SEA
7h 53m1 stop
Alaska Airlines Logo
11:40 pm - 10:56 amSEA-MDT
8h 16m1 stop
$537Alaska Airlines
Find Deal
Fri, Jun 27 - Wed, Jul 9

Alaska Airlines flights from Harrisburg to Seattle

Our best Alaska Airlines deals on Harrisburg to Seattle flight tickets
Alaska Airlines
Jun 25
MDT6:00 amHarrisburg
9h 34m
1 stop
SEA12:34 pmSeattle/Tacoma Intl
Jul 5
SEA6:00 amSeattle/Tacoma Intl
9h 06m
1 stop
MDT6:06 pmHarrisburg
Alaska Airlines
Jun 27
MDT6:31 pmHarrisburg
7h 53m
1 stop
SEA11:24 pmSeattle/Tacoma Intl
Jul 9
SEA11:40 pmSeattle/Tacoma Intl
8h 16m
1 stop
MDT10:56 amHarrisburg
Alaska Airlines
May 13
MDT5:07 pmHarrisburg
7h 53m
1 stop
SEA10:00 pmSeattle/Tacoma Intl
May 20
SEA10:50 amSeattle/Tacoma Intl
21h 31m
1 stop
MDT11:21 amHarrisburg

Delta flights from Harrisburg to Seattle

Our best Delta deals on Harrisburg to Seattle flight tickets
Delta
Jun 23
MDT5:00 pmHarrisburg
8h 22m
1 stop
SEA10:22 pmSeattle/Tacoma Intl
Jul 4
SEA11:50 pmSeattle/Tacoma Intl
8h 53m
1 stop
MDT11:43 amHarrisburg
Delta
Jun 28
MDT5:00 pmHarrisburg
17h 55m
1 stop
SEA7:55 amSeattle/Tacoma Intl
Jul 4
SEA11:50 pmSeattle/Tacoma Intl
8h 53m
1 stop
MDT11:43 amHarrisburg
Delta
Jun 23
MDT12:33 pmHarrisburg
14h 20m
2 stops
SEA11:53 pmSeattle/Tacoma Intl
Jul 4
SEA11:50 pmSeattle/Tacoma Intl
8h 53m
1 stop
MDT11:43 amHarrisburg

See travel insights to Seattle from

How to get the cheapest flight ticket from Harrisburg to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Harrisburg to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $371. If you don’t want to visit Seattle in February, then you should wait until March to fly from Harrisburg, when ticket prices are also cheap, with an average price of $386.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Harrisburg is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $508. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Harrisburg because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $643.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Harrisburg at noon is the least expensive time of day to depart. momondo users have found prices as low as $454 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $578. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Harrisburg to Seattle/Tacoma Intl flight route?

Fly from Harrisburg to Seattle/Tacoma Intl for the best Harrisburg - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Harrisburg when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $511 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Harrisburg for as low as $361 on momondo.

What cabin class options are available on Harrisburg to Seattle/Tacoma Intl flights?

There are 2 cabin classes available to choose from on Harrisburg to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Harrisburg to Seattle flight prices changed over time?

As of April 2025, prices for Harrisburg to Seattle flights are approximately 28% cheaper when compared to flights at the same time last year.

When to book flights from Harrisburg to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Harrisburg to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Harrisburg to Seattle (MDT to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harrisburg to Seattle

Best Price Found

$289

Fastest flight time

7h 04m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Harrisburg in the past 72 hours is $289. The best round-trip flight deal from Harrisburg to Seattle found on momondo in the last 72 hours is $287.
The fastest flight from Harrisburg to Seattle takes 7h 04m
There are no direct flights from Harrisburg to Seattle. Popular non-direct route for this connection is Harrisburg Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • How far is Harrisburg to Seattle/Tacoma Intl by plane?

    The straight-line distance from Harrisburg to Seattle/Tacoma Intl is 2281.5 mi. A reasonable flight in good conditions will take 7h 04m.

  • When did momondo last update prices for flights from Harrisburg Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Harrisburg Airport to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Harrisburg Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Harrisburg Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Harrisburg Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Harrisburg to Seattle?


Best airlines flying from Harrisburg to Seattle

Compare and see reviews for airlines that fly from Harrisburg to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $286Free CancellationRating
8.0
7,936 reviews
Search Delta flights
American AirlinesPriceFrom $307Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $352Free CancellationRating
8.0
9,968 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $362Free CancellationRating
7.4
8,696 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Kent
Renton
Federal Way
Tukwila
Kirkland
Puyallup
Lakewood
Lynnwood
Fife
Shoreline
Marysville
Centralia
Cle Elum
Redmond
Lacey

Why use momondo?

Why should I use momondo to find a flight deal from Harrisburg to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Harrisburg to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Harrisburg to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Harrisburg with this policy.

How can momondo help me find flights from Harrisburg to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Harrisburg. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Harrisburg to Seattle right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Harrisburg to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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