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Cheap flights from Harrisburg to Seattle from $247

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harrisburg to Seattle departing on 8/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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
6:15 am - 11:40 am
MDT
-
SEA
8h 25m
1 stop
American Airlines Logo
8:20 am - 7:02 pm
SEA
-
MDT
7h 42m
1 stop
$307American Airlines
Thu, Sep 24 - Wed, Sep 30
Delta Logo
12:30 pm - 6:38 pm
MDT
-
SEA
9h 08m
1 stop
Delta Logo
11:05 pm - 11:53 am
SEA
-
MDT
9h 48m
1 stop
$333Delta
Fri, Oct 30 - Mon, Nov 2
United Airlines Logo
6:00 am - 2:18 pm
MDT
-
SEA
11h 18m
2 stops
United Airlines Logo
11:50 pm - 9:55 am
SEA
-
MDT
7h 05m
1 stop
$334United Airlines
Tue, Nov 3 - Tue, Nov 10
American Airlines Logo
3:46 pm - 8:59 pm
MDT
-
SEA
8h 13m
1 stop
American Airlines Logo
12:15 pm - 10:16 pm
SEA
-
MDT
7h 01m
1 stop
$338American Airlines
Thu, Nov 5 - Tue, Nov 10
American Airlines Logo
2:45 pm - 9:59 pm
MDT
-
SEA
10h 14m
1 stop
American Airlines Logo
9:42 pm - 9:16 am
SEA
-
MDT
8h 34m
1 stop
$351American Airlines
Tue, Sep 1 - Wed, Sep 9
American Airlines Logo
7:15 pm - 12:52 am
MDT
-
SEA
8h 37m
1 stop
American Airlines Logo
6:00 am - 7:05 pm
SEA
-
MDT
10h 05m
1 stop
$352American Airlines
Sat, Jul 11 - Wed, Jul 15
United Airlines Logo
5:54 pm - 10:43 pm
MDT
-
SEA
7h 49m
1 stop
United Airlines Logo
7:35 pm - 9:37 am
SEA
-
MDT
11h 02m
2 stops
$356United Airlines
Tue, Sep 1 - Wed, Sep 9
Delta Logo
12:30 pm - 6:38 pm
MDT
-
SEA
9h 08m
1 stop
Delta Logo
11:05 pm - 11:53 am
SEA
-
MDT
9h 48m
1 stop
$359Delta
Fri, Nov 6 - Mon, Nov 9
American Airlines Logo
2:45 pm - 9:59 pm
MDT
-
SEA
10h 14m
1 stop
American Airlines Logo
10:00 pm - 10:34 am
SEA
-
MDT
9h 34m
1 stop
$360American Airlines
Thu, Aug 27 - Tue, Sep 1
American Airlines Logo
2:45 pm - 9:59 pm
MDT
-
SEA
10h 14m
1 stop
American Airlines Logo
11:56 pm - 12:45 pm
SEA
-
MDT
9h 49m
1 stop
$369American Airlines
Thu, Aug 27 - Sun, Aug 30

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Delta flights from Harrisburg to Seattle

Our best Delta deals on Harrisburg to Seattle flight tickets
Delta
Oct 30
MDT12:30 pmHarrisburg
9h 08m
1 stop
SEA6:38 pmSeattle/Tacoma Intl
Nov 2
SEA11:05 pmSeattle/Tacoma Intl
9h 48m
1 stop
MDT11:53 amHarrisburg
$333
Delta
Nov 6
MDT12:30 pmHarrisburg
9h 08m
1 stop
SEA6:38 pmSeattle/Tacoma Intl
Nov 9
SEA11:05 pmSeattle/Tacoma Intl
9h 48m
1 stop
MDT11:53 amHarrisburg
$359
Delta
Nov 6
MDT12:30 pmHarrisburg
9h 08m
1 stop
SEA6:38 pmSeattle/Tacoma Intl
Nov 9
SEA11:05 pmSeattle/Tacoma Intl
9h 48m
1 stop
MDT11:53 amHarrisburg
$369

United Airlines flights from Harrisburg to Seattle

Our best United Airlines deals on Harrisburg to Seattle flight tickets
United Airlines
Nov 3
MDT6:00 amHarrisburg
11h 18m
2 stops
SEA2:18 pmSeattle/Tacoma Intl
Nov 10
SEA11:50 pmSeattle/Tacoma Intl
7h 05m
1 stop
MDT9:55 amHarrisburg
$334
United Airlines
Sep 1
MDT5:54 pmHarrisburg
7h 49m
1 stop
SEA10:43 pmSeattle/Tacoma Intl
Sep 9
SEA7:35 pmSeattle/Tacoma Intl
11h 02m
2 stops
MDT9:37 amHarrisburg
$356
United Airlines
Sep 1
MDT2:52 pmHarrisburg
10h 51m
2 stops
SEA10:43 pmSeattle/Tacoma Intl
Sep 9
SEA11:00 pmSeattle/Tacoma Intl
7h 51m
1 stop
MDT9:51 amHarrisburg
$381

momondo Fare Finder

 
Customize your flight search to find flights from Harrisburg 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, momondo users made 832,500 searches. Data last updated June 19, 2026.
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 - SEA

MDTSEA

Harrisburg

Thu 9/24

6:15 am-11:40 am

1 stop8h 25m

Seattle/Tacoma Intl

Wed 9/30

8:20 am-7:02 pm

1 stop7h 42m

$307

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Fri 10/30

12:30 pm-6:38 pm

1 stop9h 08m

Seattle/Tacoma Intl

Mon 11/2

11:05 pm-11:53 am

1 stop9h 48m

$333

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Tue 11/3

6:00 am-2:18 pm

2 stops11h 18m

Seattle/Tacoma Intl

Tue 11/10

11:50 pm-9:55 am

1 stop7h 05m

$334
Quickest round-trip

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Thu 11/5

3:46 pm-8:59 pm

1 stop8h 13m

Seattle/Tacoma Intl

Tue 11/10

12:15 pm-10:16 pm

1 stop7h 01m

$338

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Tue 9/1

2:45 pm-9:59 pm

1 stop10h 14m

Seattle/Tacoma Intl

Wed 9/9

9:42 pm-9:16 am

1 stop8h 34m

$351

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Sat 7/11

7:15 pm-12:52 am

1 stop8h 37m

Seattle/Tacoma Intl

Wed 7/15

6:00 am-7:05 pm

1 stop10h 05m

$352

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Tue 9/1

5:54 pm-10:43 pm

1 stop7h 49m

Seattle/Tacoma Intl

Wed 9/9

7:35 pm-9:37 am

2 stops11h 02m

$356

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Fri 11/6

12:30 pm-6:38 pm

1 stop9h 08m

Seattle/Tacoma Intl

Mon 11/9

11:05 pm-11:53 am

1 stop9h 48m

$359

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Thu 8/27

2:45 pm-9:59 pm

1 stop10h 14m

Seattle/Tacoma Intl

Tue 9/1

10:00 pm-10:34 am

1 stop9h 34m

$360

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Thu 8/27

2:45 pm-9:59 pm

1 stop10h 14m

Seattle/Tacoma Intl

Sun 8/30

11:56 pm-12:45 pm

1 stop9h 49m

$369

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

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 $442 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 32% 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 June 2026, prices for Harrisburg to Seattle flights are approximately 37% 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

Fastest flight time

7h 49m

Direct flights

None
The fastest flight from Harrisburg to Seattle takes 7h 49m
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 49m.

  • 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
8,419 reviews
Search Delta flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
9,865 reviews
Search United Airlines flights
American AirlinesPriceFrom $293Free CancellationRating
7.1
11,709 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $422Free CancellationRating
7.9
12,548 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
Olympia
Lynnwood
Redmond
Kent
Lakewood
Puyallup
Tukwila
Federal Way
Fife
Cle Elum
Marysville
Centralia
Shoreline
Kirkland
Westport

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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