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Cheap flights from Harrisburg to Seattle from $276

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.
American Airlines Logo
3:11 pm - 8:15 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 04m1 stop Chicago O'Hare Intl
American Airlines Logo
10:48 pm - 11:42 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 54m1 stop Philadelphia
$361American Airlines
Wed, Oct 7 - Tue, Oct 13
American Airlines Logo
6:00 am - 12:50 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 50m1 stop Chicago O'Hare Intl
American Airlines Logo
11:59 pm - 11:19 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 20m1 stop Chicago O'Hare Intl
$361American Airlines
Sat, Oct 3 - Sat, Oct 10
United Airlines Logo
5:54 pm - 10:56 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 02m1 stop Chicago O'Hare Intl
United Airlines Logo
7:25 pm - 9:51 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
11h 26m2 stops San Francisco Chicago O'Hare Intl
$366United Airlines
Sat, Oct 10 - Wed, Oct 14
United Airlines Logo
6:30 am - 11:32 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 02m1 stop Chicago O'Hare Intl
United Airlines Logo
7:25 pm - 9:51 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
11h 26m2 stops San Francisco Chicago O'Hare Intl
$366United Airlines
Wed, Sep 23 - Wed, Sep 30
Delta Logo
6:09 pm - 11:58 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 49m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:05 pm - 11:35 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 30m1 stop Detroit Metropolitan Wayne County
$370Delta
Sat, Sep 12 - Fri, Sep 25
Delta Logo
6:09 pm - 11:58 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 49m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:05 pm - 11:35 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 30m1 stop Detroit Metropolitan Wayne County
$379Delta
Tue, Sep 15 - Fri, Sep 25
Alaska Airlines Logo
6:08 am - 11:44 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 36m1 stop Chicago O'Hare Intl
Alaska Airlines Logo
9:29 pm - 10:17 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 48m1 stop Philadelphia
$660Alaska Airlines
Fri, Oct 9 - Tue, Oct 13
Alaska Airlines Logo
3:11 pm - 9:59 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 48m1 stop Chicago O'Hare Intl
Alaska Airlines Logo
11:56 am - 10:19 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 23m1 stop Chicago O'Hare Intl
$660Alaska Airlines
Fri, Oct 16 - Tue, Oct 20
Multiple Airlines Logo
3:38 pm - 7:20 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
18h 42m2 stops Nashville Intl Calgary
Multiple Airlines Logo
12:16 am - 11:23 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 07m1 stop Chicago O'Hare Intl
$1,003Multiple Airlines
Sun, Sep 13 - Wed, Sep 23
Multiple Airlines Logo
3:38 pm - 7:20 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
18h 42m2 stops Nashville Intl Calgary
Multiple Airlines Logo
12:16 am - 11:23 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 07m1 stop Chicago O'Hare Intl
$1,028Multiple Airlines
Thu, Sep 17 - Wed, Sep 23

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United Airlines flights from Harrisburg to Seattle

Our best United Airlines deals on Harrisburg to Seattle flight tickets
United Airlines
Sep 23
MDT6:30 amHarrisburg
8h 02m
1 stop
SEA11:32 amSeattle/Tacoma Intl
Sep 30
SEA7:25 pmSeattle/Tacoma Intl
11h 26m
2 stops
MDT9:51 amHarrisburg
$366
United Airlines
Sep 12
MDT2:52 pmHarrisburg
8h 26m
1 stop
SEA8:18 pmSeattle/Tacoma Intl
Sep 15
SEA7:11 amSeattle/Tacoma Intl
10h 50m
2 stops
MDT9:01 pmHarrisburg
$375
United Airlines
Sep 15
MDT2:17 pmHarrisburg
7h 58m
1 stop
SEA7:15 pmSeattle/Tacoma Intl
Sep 22
SEA11:00 pmSeattle/Tacoma Intl
11h 39m
2 stops
MDT1:39 pmHarrisburg
$384

American Airlines flights from Harrisburg to Seattle

Our best American Airlines deals on Harrisburg to Seattle flight tickets
American Airlines
Oct 7
MDT12:10 pmHarrisburg
11h 05m
1 stop
SEA8:15 pmSeattle/Tacoma Intl
Oct 13
SEA11:59 pmSeattle/Tacoma Intl
8h 20m
1 stop
MDT11:19 amHarrisburg
$361
American Airlines
Sep 24
MDT6:54 pmHarrisburg
8h 17m
1 stop
SEA12:11 amSeattle/Tacoma Intl
Sep 30
SEA11:57 pmSeattle/Tacoma Intl
8h 26m
1 stop
MDT11:23 amHarrisburg
$370
American Airlines
Nov 6
MDT2:15 pmHarrisburg
9h 05m
1 stop
SEA8:20 pmSeattle/Tacoma Intl
Nov 9
SEA6:14 amSeattle/Tacoma Intl
10h 08m
1 stop
MDT7:22 pmHarrisburg
$379

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

Wed 10/7

3:11 pm-8:15 pm

1 stop8h 04m

Seattle/Tacoma Intl

Tue 10/13

10:48 pm-11:42 am

1 stop9h 54m

$361

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 10/3

6:00 am-12:50 pm

1 stop9h 50m

Seattle/Tacoma Intl

Sat 10/10

11:59 pm-11:19 am

1 stop8h 20m

$361

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 10/10

5:54 pm-10:56 pm

1 stop8h 02m

Seattle/Tacoma Intl

Wed 10/14

7:25 pm-9:51 am

2 stops11h 26m

$366

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 9/23

6:30 am-11:32 am

1 stop8h 02m

Seattle/Tacoma Intl

Wed 9/30

7:25 pm-9:51 am

2 stops11h 26m

$366

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 9/12

6:09 pm-11:58 pm

1 stop8h 49m

Seattle/Tacoma Intl

Fri 9/25

11:05 pm-11:35 am

1 stop9h 30m

$370

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Tue 9/15

6:09 pm-11:58 pm

1 stop8h 49m

Seattle/Tacoma Intl

Fri 9/25

11:05 pm-11:35 am

1 stop9h 30m

$379

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Fri 10/9

6:08 am-11:44 am

1 stop8h 36m

Seattle/Tacoma Intl

Tue 10/13

9:29 pm-10:17 am

1 stop9h 48m

$660
Quickest round-trip

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Fri 10/16

3:11 pm-9:59 pm

1 stop9h 48m

Seattle/Tacoma Intl

Tue 10/20

11:56 am-10:19 pm

1 stop7h 23m

$660

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sun 9/13

3:38 pm-7:20 am

2 stops18h 42m

Seattle/Tacoma Intl

Wed 9/23

12:16 am-11:23 am

1 stop8h 07m

$1,003

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Thu 9/17

3:38 pm-7:20 am

2 stops18h 42m

Seattle/Tacoma Intl

Wed 9/23

12:16 am-11:23 am

1 stop8h 07m

$1,028

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 $360 to $586.
The lowest price recently found on this route was $361.

What is the cheapest month to fly to Seattle?

In general, January 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 $298. If you don’t want to visit Seattle in January, then you should wait until February to fly from Harrisburg, when ticket prices are also cheap, with an average price of $359.

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 $441 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.

Can stopping save me money on Harrisburg to Seattle flights?

You could potentially save up to 62% on your flight if you consider stops on a Harrisburg to Seattle flight.

How have Harrisburg to Seattle flight prices changed over time?

As of August 2026, prices for Harrisburg to Seattle flights are approximately 52% 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

$276

Fastest flight time

7h 55m

Direct flights

None
The best one-way flight to Seattle from Harrisburg in the past 72 hours is $276. The best round-trip flight deal from Harrisburg to Seattle found on momondo in the last 72 hours is $361.
The fastest flight from Harrisburg to Seattle takes 7h 55m
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 55m.

  • 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
8,541 reviews
Search Delta flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
10,136 reviews
Search United Airlines flights
American AirlinesPriceFrom $293Free CancellationRating
7.1
12,026 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $468Free CancellationRating
7.9
12,859 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
Redmond
Lynnwood
Lakewood
Federal Way
Puyallup
Tukwila
Fife
Cle Elum
Marysville
Kirkland
Shoreline
Centralia
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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