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Cheap flights from Harrisburg to Seattle from $231

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Harrisburg to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:50 pm - 9:01 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 11m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
8:09 am - 6:50 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 41m1 stop Washington, D.C. Dulles Intl
$409United Airlines
Sat, Dec 5 - Sat, Dec 12
United Airlines Logo
8:19 am - 4:18 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
10h 59m1 stop Chicago O'Hare Intl
United Airlines Logo
8:08 am - 6:44 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 36m1 stop Washington, D.C. Dulles Intl
$411United Airlines
Tue, Dec 15 - Tue, Jan 12
United Airlines Logo
2:50 pm - 9:01 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 11m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
7:30 pm - 10:03 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
11h 33m2 stops San Francisco Chicago O'Hare Intl
$414United Airlines
Sat, Dec 5 - Sat, Dec 12
American Airlines Logo
7:02 am - 2:36 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
10h 34m1 stop Chicago O'Hare Intl
American Airlines Logo
10:53 am - 10:28 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 35m1 stop Chicago O'Hare Intl
$415American Airlines
Fri, Dec 11 - Tue, Dec 15
American Airlines Logo
5:38 am - 10:14 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
7h 36m1 stop Chicago O'Hare Intl
American Airlines Logo
1:19 pm - 11:59 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 40m1 stop Chicago O'Hare Intl
$415American Airlines
Mon, Apr 26 - Wed, May 5
American Airlines Logo
2:22 pm - 10:38 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
11h 16m1 stop Philadelphia
American Airlines Logo
9:58 am - 10:30 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 32m1 stop Chicago O'Hare Intl
$415American Airlines
Tue, Dec 15 - Fri, Jan 15
Delta Logo
6:00 am - 11:10 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 10m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:00 am - 4:16 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 16m1 stop Detroit Metropolitan Wayne County
$441Delta
Sat, Dec 12 - Wed, Dec 16
Alaska Airlines Logo
3:06 pm - 9:53 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 47m1 stop Philadelphia
Alaska Airlines Logo
9:35 pm - 9:26 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 51m1 stop Philadelphia
$549Alaska Airlines
Wed, Dec 2 - Mon, Dec 7
Alaska Airlines Logo
7:02 am - 2:49 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
10h 47m2 stops Chicago O'Hare Intl Boise Air Term. Gowen Fld
Alaska Airlines Logo
10:22 am - 10:28 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 06m1 stop Chicago O'Hare Intl
$554Alaska Airlines
Wed, Dec 2 - Mon, Dec 7
Delta Logo
5:00 pm - 10:05 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 05m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:00 am - 5:25 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 25m1 stop Atlanta Hartsfield-Jackson
$580Delta
Sun, Apr 11 - Sat, Apr 17

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United Airlines flights from Harrisburg to Seattle

Our best United Airlines deals on Harrisburg to Seattle flight tickets
United Airlines
Dec 5
MDT2:50 pmHarrisburg
9h 11m
1 stop
SEA9:01 pmSeattle/Tacoma Intl
Dec 12
SEA8:09 amSeattle/Tacoma Intl
7h 41m
1 stop
MDT6:50 pmHarrisburg
$409
United Airlines
Dec 15
MDT8:19 amHarrisburg
10h 59m
1 stop
SEA4:18 pmSeattle/Tacoma Intl
Jan 12
SEA8:08 amSeattle/Tacoma Intl
7h 36m
1 stop
MDT6:44 pmHarrisburg
$411
United Airlines
Dec 5
MDT2:50 pmHarrisburg
9h 11m
1 stop
SEA9:01 pmSeattle/Tacoma Intl
Dec 12
SEA7:30 pmSeattle/Tacoma Intl
11h 33m
2 stops
MDT10:03 amHarrisburg
$414

American Airlines flights from Harrisburg to Seattle

Our best American Airlines deals on Harrisburg to Seattle flight tickets
American Airlines
Dec 11
MDT7:02 amHarrisburg
10h 34m
1 stop
SEA2:36 pmSeattle/Tacoma Intl
Dec 15
SEA10:53 amSeattle/Tacoma Intl
8h 35m
1 stop
MDT10:28 pmHarrisburg
$415
American Airlines
Dec 2
MDT7:02 amHarrisburg
10h 34m
1 stop
SEA2:36 pmSeattle/Tacoma Intl
Dec 15
SEA9:45 pmSeattle/Tacoma Intl
9h 33m
1 stop
MDT10:18 amHarrisburg
$425
American Airlines
Dec 15
MDT7:02 amHarrisburg
10h 34m
1 stop
SEA2:36 pmSeattle/Tacoma Intl
Dec 20
SEA11:17 pmSeattle/Tacoma Intl
6h 58m
1 stop
MDT9:15 amHarrisburg
$505

momondo Fare Finder

 
Use the filters below to find and compare flights from Harrisburg to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 12/5

2:50 pm-9:01 pm

1 stop9h 11m

Seattle/Tacoma Intl

Sat 12/12

8:09 am-6:50 pm

1 stop7h 41m

$409

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Tue 12/15

8:19 am-4:18 pm

1 stop10h 59m

Seattle/Tacoma Intl

Tue 1/12

8:08 am-6:44 pm

1 stop7h 36m

$411

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 12/5

2:50 pm-9:01 pm

1 stop9h 11m

Seattle/Tacoma Intl

Sat 12/12

7:30 pm-10:03 am

2 stops11h 33m

$414

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Fri 12/11

7:02 am-2:36 pm

1 stop10h 34m

Seattle/Tacoma Intl

Tue 12/15

10:53 am-10:28 pm

1 stop8h 35m

$415
Quickest round-trip

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Mon 4/26

5:38 am-10:14 am

1 stop7h 36m

Seattle/Tacoma Intl

Wed 5/5

1:19 pm-11:59 pm

1 stop7h 40m

$415

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Tue 12/15

2:22 pm-10:38 pm

1 stop11h 16m

Seattle/Tacoma Intl

Fri 1/15

9:58 am-10:30 pm

1 stop9h 32m

$415

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 12/12

6:00 am-11:10 am

1 stop8h 10m

Seattle/Tacoma Intl

Wed 12/16

6:00 am-4:16 pm

1 stop7h 16m

$441

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 12/2

3:06 pm-9:53 pm

1 stop9h 47m

Seattle/Tacoma Intl

Mon 12/7

9:35 pm-9:26 am

1 stop8h 51m

$549

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 12/2

7:02 am-2:49 pm

2 stops10h 47m

Seattle/Tacoma Intl

Mon 12/7

10:22 am-10:28 pm

1 stop9h 06m

$554

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sun 4/11

5:00 pm-10:05 pm

1 stop8h 05m

Seattle/Tacoma Intl

Sat 4/17

6:00 am-5:25 pm

1 stop8h 25m

$580

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between Harrisburg and Seattle?

Prices are currently typical for flights on this route.

Typical prices usually range from $359 to $474.
The lowest price recently found on this route was $409.

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 $359. If you don’t want to visit Seattle in February, then you should wait until January to fly from Harrisburg, when ticket prices are also cheap, with an average price of $380.

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

You are more likely to see cheaper flights to Seattle from Harrisburg when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $463 when searching 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 $305 on momondo.

How have Harrisburg to Seattle flight prices changed over time?

As of November 2026, prices for Harrisburg to Seattle flights are approximately 102% more expensive 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

$231

Fastest flight time

7h 57m

Direct flights

None
The best one-way flight to Seattle from Harrisburg in the past 72 hours is $231. The best round-trip flight deal from Harrisburg to Seattle found on momondo in the last 72 hours is $409.
The fastest flight from Harrisburg to Seattle takes 7h 57m
There are no direct flights from Harrisburg to Seattle. There are no popular flight routes from Harrisburg to Seattle.
Search flight deals

Frequently asked questions about flying from Harrisburg to Seattle

  • 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 57m.

  • 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 $159Free CancellationRating
7.8
8,700 reviews
Search Delta flights
United AirlinesPriceFrom $258Free CancellationRating
7.3
10,473 reviews
Search United Airlines flights
American AirlinesPriceFrom $298Free CancellationRating
7.0
12,227 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $533Free CancellationRating
7.9
13,159 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

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

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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