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Cheap flights from Harrisburg to Seattle from $304

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
3:15 pm - 8:14 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
7h 59m1 stop Chicago O'Hare Intl
American Airlines Logo
11:00 pm - 9:20 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 20m1 stop Charlotte Douglas
$381American Airlines
Sat, Oct 24 - Sat, Oct 31
American Airlines Logo
3:17 pm - 8:19 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 02m1 stop Chicago O'Hare Intl
American Airlines Logo
6:14 am - 7:22 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
10h 08m1 stop Chicago O'Hare Intl
$381American Airlines
Sat, Nov 7 - Wed, Nov 11
United Airlines Logo
2:30 pm - 8:10 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 40m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
7:00 am - 6:40 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 40m1 stop Chicago O'Hare Intl
$381United Airlines
Sat, Feb 13 - Tue, Feb 16
United Airlines Logo
2:38 pm - 8:56 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 18m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
10:56 pm - 9:53 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 57m1 stop Chicago O'Hare Intl
$381United Airlines
Wed, Nov 4 - Tue, Nov 10
United Airlines Logo
6:30 am - 11:40 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
7:32 pm - 9:35 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
11h 03m2 stops San Francisco Chicago O'Hare Intl
$386United Airlines
Sat, Feb 13 - Tue, Feb 16
Delta Logo
12:27 pm - 7:04 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 37m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:15 pm - 11:29 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 14m1 stop Detroit Metropolitan Wayne County
$390Delta
Sat, Nov 7 - Mon, Nov 9
American Airlines Logo
6:34 am - 2:20 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
10h 46m1 stop Chicago O'Hare Intl
American Airlines Logo
9:45 pm - 9:20 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 35m1 stop Charlotte Douglas
$390American Airlines
Fri, Nov 6 - Wed, Nov 11
Delta Logo
6:13 am - 10:40 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
7h 27m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:00 am - 4:06 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 06m1 stop Detroit Metropolitan Wayne County
$440Delta
Wed, Nov 4 - Sun, Nov 8
Alaska Airlines Logo
2:03 pm - 9:42 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
10h 39m1 stop Chicago O'Hare Intl
Alaska Airlines Logo
11:45 am - 10:27 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 42m1 stop Chicago O'Hare Intl
$700Alaska Airlines
Wed, Jan 6 - Sun, Jan 24
Alaska Airlines Logo
2:03 pm - 9:42 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
10h 39m1 stop Chicago O'Hare Intl
Alaska Airlines Logo
9:23 pm - 7:52 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
19h 29m2 stops Portland Chicago O'Hare Intl
$705Alaska Airlines
Wed, Jan 6 - Sun, Jan 24

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American Airlines flights from Harrisburg to Seattle

Our best American Airlines deals on Harrisburg to Seattle flight tickets
American Airlines
Nov 7
MDT3:17 pmHarrisburg
8h 02m
1 stop
SEA8:19 pmSeattle/Tacoma Intl
Nov 11
SEA6:14 amSeattle/Tacoma Intl
10h 08m
1 stop
MDT7:22 pmHarrisburg
$381
American Airlines
Oct 17
MDT12:10 pmHarrisburg
11h 04m
1 stop
SEA8:14 pmSeattle/Tacoma Intl
Oct 24
SEA9:42 pmSeattle/Tacoma Intl
8h 29m
1 stop
MDT9:11 amHarrisburg
$390
American Airlines
Nov 6
MDT1:59 pmHarrisburg
11h 00m
1 stop
SEA9:59 pmSeattle/Tacoma Intl
Nov 9
SEA9:45 pmSeattle/Tacoma Intl
9h 35m
1 stop
MDT10:20 amHarrisburg
$399

United Airlines flights from Harrisburg to Seattle

Our best United Airlines deals on Harrisburg to Seattle flight tickets
United Airlines
Oct 24
MDT2:55 pmHarrisburg
8h 42m
1 stop
SEA8:37 pmSeattle/Tacoma Intl
Oct 31
SEA5:05 amSeattle/Tacoma Intl
8h 49m
2 stops
MDT4:54 pmHarrisburg
$386
United Airlines
Oct 28
MDT8:15 amHarrisburg
11h 12m
2 stops
SEA4:27 pmSeattle/Tacoma Intl
Nov 1
SEA8:09 amSeattle/Tacoma Intl
7h 27m
1 stop
MDT6:36 pmHarrisburg
$395
United Airlines
Oct 15
MDT5:54 pmHarrisburg
8h 02m
1 stop
SEA10:56 pmSeattle/Tacoma Intl
Oct 17
SEA9:05 amSeattle/Tacoma Intl
11h 24m
2 stops
MDT11:29 pmHarrisburg
$404

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 10/24

3:15 pm-8:14 pm

1 stop7h 59m

Seattle/Tacoma Intl

Sat 10/31

11:00 pm-9:20 am

1 stop8h 20m

$381

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 11/7

3:17 pm-8:19 pm

1 stop8h 02m

Seattle/Tacoma Intl

Wed 11/11

6:14 am-7:22 pm

1 stop10h 08m

$381

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 2/13

2:30 pm-8:10 pm

1 stop8h 40m

Seattle/Tacoma Intl

Tue 2/16

7:00 am-6:40 pm

1 stop8h 40m

$381

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 11/4

2:38 pm-8:56 pm

1 stop9h 18m

Seattle/Tacoma Intl

Tue 11/10

10:56 pm-9:53 am

1 stop7h 57m

$381

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 2/13

6:30 am-11:40 am

1 stop8h 10m

Seattle/Tacoma Intl

Tue 2/16

7:32 pm-9:35 am

2 stops11h 03m

$386

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 11/7

12:27 pm-7:04 pm

1 stop9h 37m

Seattle/Tacoma Intl

Mon 11/9

11:15 pm-11:29 am

1 stop9h 14m

$390

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Fri 11/6

6:34 am-2:20 pm

1 stop10h 46m

Seattle/Tacoma Intl

Wed 11/11

9:45 pm-9:20 am

1 stop8h 35m

$390
Quickest round-trip

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 11/4

6:13 am-10:40 am

1 stop7h 27m

Seattle/Tacoma Intl

Sun 11/8

6:00 am-4:06 pm

1 stop7h 06m

$440

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 1/6

2:03 pm-9:42 pm

1 stop10h 39m

Seattle/Tacoma Intl

Sun 1/24

11:45 am-10:27 pm

1 stop7h 42m

$700

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 1/6

2:03 pm-9:42 pm

1 stop10h 39m

Seattle/Tacoma Intl

Sun 1/24

9:23 pm-7:52 pm

2 stops19h 29m

$705

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 low for flights on this route.

Typical prices usually range from $388 to $541.
The lowest price recently found on this route was $381.

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 November to fly from Harrisburg, when ticket prices are also cheap, with an average price of $379.

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 September 2026, prices for Harrisburg to Seattle flights are approximately 44% 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

$304

Fastest flight time

7h 16m

Direct flights

None
The best one-way flight to Seattle from Harrisburg in the past 72 hours is $304. The best round-trip flight deal from Harrisburg to Seattle found on momondo in the last 72 hours is $381.
The fastest flight from Harrisburg to Seattle takes 7h 16m
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 16m.

  • 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
8,599 reviews
Search Delta flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
10,237 reviews
Search United Airlines flights
American AirlinesPriceFrom $293Free CancellationRating
7.0
12,085 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $468Free CancellationRating
7.9
12,966 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
Kent
Redmond
Lakewood
Federal Way
Fife
Tukwila
Puyallup
Lynnwood
Cle Elum
Marysville
Lacey
Centralia
Kirkland
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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