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Cheap flights from Harrisburg to Seattle from $226

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
6:00 am - 11:37 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 37m1 stop Charlotte Douglas
American Airlines Logo
12:45 pm - 10:45 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 00m1 stop Philadelphia
$399American Airlines
Wed, Nov 18 - Wed, Nov 25
American Airlines Logo
10:14 am - 6:23 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
11h 09m1 stop Charlotte Douglas
American Airlines Logo
10:53 am - 10:28 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 35m1 stop Chicago O'Hare Intl
$399American Airlines
Fri, Dec 11 - Tue, Dec 15
Delta Logo
5:58 pm - 11:55 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 57m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:30 pm - 11:15 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
6h 45m1 stop Detroit Metropolitan Wayne County
$399Delta
Thu, Dec 17 - Tue, Dec 29
American Airlines Logo
6:08 am - 12:19 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 11m1 stop Philadelphia
American Airlines Logo
10:27 am - 10:54 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 27m1 stop Dallas/Fort Worth
$399American Airlines
Fri, Dec 11 - Tue, Dec 15
United Airlines Logo
10:40 am - 6:24 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
10h 44m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
7:00 am - 6:43 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 43m1 stop Chicago O'Hare Intl
$404United Airlines
Wed, Dec 9 - Sun, Dec 13
United Airlines Logo
2:10 pm - 7:03 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
7h 53m1 stop Chicago O'Hare Intl
United Airlines Logo
7:04 pm - 9:45 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
11h 41m2 stops Denver Intl Washington, D.C. Dulles Intl
$404United Airlines
Wed, Nov 18 - Wed, Nov 25
Delta Logo
6:10 am - 9:55 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
18h 45m1 stop Detroit Metropolitan Wayne County
Delta Logo
1:30 pm - 11:15 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
6h 45m1 stop Detroit Metropolitan Wayne County
$552Delta
Sat, Dec 19 - Tue, Dec 29
Delta Logo
5:58 pm - 11:55 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 57m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:59 pm - 11:15 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
20h 16m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County
$622Delta
Thu, Dec 17 - Mon, Dec 28
Alaska Airlines Logo
3:01 pm - 9:05 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 04m1 stop Philadelphia
Alaska Airlines Logo
9:45 pm - 7:03 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
18h 18m1 stop Philadelphia
$675Alaska Airlines
Tue, Mar 16 - Tue, Mar 23
Alaska Airlines Logo
3:01 pm - 9:05 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 04m1 stop Philadelphia
Alaska Airlines Logo
7:59 pm - 7:56 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
20h 57m2 stops San Diego Chicago O'Hare Intl
$680Alaska Airlines
Tue, Mar 16 - Tue, Mar 23

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American Airlines flights from Harrisburg to Seattle

Our best American Airlines deals on Harrisburg to Seattle flight tickets
American Airlines
Dec 11
MDT10:14 amHarrisburg
11h 09m
1 stop
SEA6:23 pmSeattle/Tacoma Intl
Dec 15
SEA10:53 amSeattle/Tacoma Intl
8h 35m
1 stop
MDT10:28 pmHarrisburg
$399
American Airlines
Nov 6
MDT6:34 amHarrisburg
10h 46m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
Nov 12
SEA6:00 amSeattle/Tacoma Intl
8h 18m
1 stop
MDT5:18 pmHarrisburg
$439
American Airlines
Dec 22
MDT6:15 amHarrisburg
8h 27m
1 stop
SEA11:42 amSeattle/Tacoma Intl
Dec 30
SEA5:45 amSeattle/Tacoma Intl
8h 05m
1 stop
MDT4:50 pmHarrisburg
$472

United Airlines flights from Harrisburg to Seattle

Our best United Airlines deals on Harrisburg to Seattle flight tickets
United Airlines
Nov 17
MDT2:38 pmHarrisburg
11h 29m
2 stops
SEA11:07 pmSeattle/Tacoma Intl
Dec 8
SEA7:00 amSeattle/Tacoma Intl
8h 43m
1 stop
MDT6:43 pmHarrisburg
$404
United Airlines
Nov 18
MDT8:15 amHarrisburg
11h 12m
2 stops
SEA4:27 pmSeattle/Tacoma Intl
Nov 25
SEA10:56 pmSeattle/Tacoma Intl
8h 14m
1 stop
MDT10:10 amHarrisburg
$417
United Airlines
Feb 5
MDT6:20 amHarrisburg
8h 27m
1 stop
SEA11:47 amSeattle/Tacoma Intl
Feb 12
SEA7:10 pmSeattle/Tacoma Intl
11h 14m
2 stops
MDT9:24 amHarrisburg
$461

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
Quickest round-trip

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 11/18

6:00 am-11:37 am

1 stop8h 37m

Seattle/Tacoma Intl

Wed 11/25

12:45 pm-10:45 pm

1 stop7h 00m

$399

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Fri 12/11

10:14 am-6:23 pm

1 stop11h 09m

Seattle/Tacoma Intl

Tue 12/15

10:53 am-10:28 pm

1 stop8h 35m

$399

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Thu 12/17

5:58 pm-11:55 pm

1 stop8h 57m

Seattle/Tacoma Intl

Tue 12/29

1:30 pm-11:15 pm

1 stop6h 45m

$399

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Fri 12/11

6:08 am-12:19 pm

1 stop9h 11m

Seattle/Tacoma Intl

Tue 12/15

10:27 am-10:54 pm

1 stop9h 27m

$399

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 12/9

10:40 am-6:24 pm

2 stops10h 44m

Seattle/Tacoma Intl

Sun 12/13

7:00 am-6:43 pm

1 stop8h 43m

$404

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 11/18

2:10 pm-7:03 pm

1 stop7h 53m

Seattle/Tacoma Intl

Wed 11/25

7:04 pm-9:45 am

2 stops11h 41m

$404

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 12/19

6:10 am-9:55 pm

1 stop18h 45m

Seattle/Tacoma Intl

Tue 12/29

1:30 pm-11:15 pm

1 stop6h 45m

$552

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Thu 12/17

5:58 pm-11:55 pm

1 stop8h 57m

Seattle/Tacoma Intl

Mon 12/28

11:59 pm-11:15 pm

2 stops20h 16m

$622

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Tue 3/16

3:01 pm-9:05 pm

1 stop9h 04m

Seattle/Tacoma Intl

Tue 3/23

9:45 pm-7:03 pm

1 stop18h 18m

$675

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Tue 3/16

3:01 pm-9:05 pm

1 stop9h 04m

Seattle/Tacoma Intl

Tue 3/23

7:59 pm-7:56 pm

2 stops20h 57m

$680

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 $379 to $520.
The lowest price recently found on this route was $399.

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 $460 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 October 2026, prices for Harrisburg to Seattle flights are approximately 35% 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

$226

Fastest flight time

7h 27m

Direct flights

None
The best one-way flight to Seattle from Harrisburg in the past 72 hours is $226. The best round-trip flight deal from Harrisburg to Seattle found on momondo in the last 72 hours is $399.
The fastest flight from Harrisburg to Seattle takes 7h 27m
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 27m.

  • 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
8,676 reviews
Search Delta flights
United AirlinesPriceFrom $258Free CancellationRating
7.3
10,427 reviews
Search United Airlines flights
American AirlinesPriceFrom $298Free CancellationRating
7.0
12,192 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $533Free CancellationRating
7.9
13,120 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
Redmond
Olympia
Federal Way
Kent
Lakewood
Lynnwood
Puyallup
Tukwila
Fife
Cle Elum
Marysville
Lacey
Kirkland
Centralia
Shoreline

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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