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Cheap flights from Harrisburg to Seattle from $219

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
12:10 pm - 8:14 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
11h 04m1 stop Chicago O'Hare Intl
American Airlines Logo
9:42 pm - 9:11 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 29m1 stop Charlotte Douglas
$361American Airlines
Sat, Oct 17 - Sat, Oct 24
American Airlines Logo
12:10 pm - 8:15 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
11h 05m1 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
Wed, Oct 7 - Tue, Oct 13
Delta Logo
5:05 pm - 9:58 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
7h 53m1 stop Detroit Metropolitan Wayne County
Delta Logo
1:36 pm - 11:02 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
6h 26m1 stop Detroit Metropolitan Wayne County
$361Delta
Tue, Nov 17 - Wed, Dec 2
Delta Logo
12:09 pm - 6:37 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 28m1 stop Detroit Metropolitan Wayne County
Delta Logo
1:36 pm - 11:02 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
6h 26m1 stop Detroit Metropolitan Wayne County
$361Delta
Sat, Nov 14 - Wed, Dec 2
American Airlines Logo
3:15 pm - 8:14 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
7h 59m1 stop Chicago O'Hare Intl
American Airlines Logo
8:24 am - 9:15 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 51m1 stop Philadelphia
$361American Airlines
Sat, Oct 17 - Sat, Oct 24
United Airlines Logo
8:15 am - 4:26 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
11h 11m2 stops Chicago O'Hare Intl San Francisco
United Airlines Logo
7:00 am - 6:57 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 57m1 stop Chicago O'Hare Intl
$366United Airlines
Sat, Nov 7 - Wed, Nov 11
Delta Logo
5:05 pm - 9:58 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
7h 53m1 stop Detroit Metropolitan Wayne County
Delta Logo
1:36 pm - 11:02 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
6h 26m1 stop Detroit Metropolitan Wayne County
$370Delta
Sat, Nov 14 - Thu, Dec 3
United Airlines Logo
2:10 pm - 7:03 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
7h 53m1 stop Chicago O'Hare Intl
United Airlines Logo
10:40 am - 11:44 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
10h 04m2 stops San Francisco Washington, D.C. Dulles Intl
$375United Airlines
Wed, Nov 4 - Mon, Nov 9
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
$615Alaska Airlines
Tue, Oct 6 - Tue, Oct 13
Alaska Airlines Logo
6:34 am - 2:31 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
10h 57m2 stops Chicago O'Hare Intl Boise Air Term. Gowen Fld
Alaska Airlines Logo
12:58 am - 1:35 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 37m1 stop Chicago O'Hare Intl
$620Alaska Airlines
Wed, Nov 18 - Mon, Nov 30

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Delta flights from Harrisburg to Seattle

Our best Delta deals on Harrisburg to Seattle flight tickets
Delta
Oct 14
MDT6:06 pmHarrisburg
8h 46m
1 stop
SEA11:52 pmSeattle/Tacoma Intl
Oct 24
SEA6:00 amSeattle/Tacoma Intl
7h 06m
1 stop
MDT4:06 pmHarrisburg
$381
Delta
Oct 14
MDT2:56 pmHarrisburg
10h 07m
1 stop
SEA10:03 pmSeattle/Tacoma Intl
Oct 22
SEA11:45 amSeattle/Tacoma Intl
8h 54m
1 stop
MDT11:39 pmHarrisburg
$390
Delta
Oct 15
MDT2:56 pmHarrisburg
10h 07m
1 stop
SEA10:03 pmSeattle/Tacoma Intl
Oct 28
SEA11:59 pmSeattle/Tacoma Intl
8h 00m
1 stop
MDT10:59 amHarrisburg
$411

United Airlines flights from Harrisburg to Seattle

Our best United Airlines deals on Harrisburg to Seattle flight tickets
United Airlines
Oct 7
MDT2:08 pmHarrisburg
7h 44m
1 stop
SEA6:52 pmSeattle/Tacoma Intl
Oct 13
SEA11:13 pmSeattle/Tacoma Intl
11h 46m
2 stops
MDT1:59 pmHarrisburg
$386
United Airlines
Nov 17
MDT6:30 amHarrisburg
8h 49m
1 stop
SEA12:19 pmSeattle/Tacoma Intl
Nov 30
SEA10:56 pmSeattle/Tacoma Intl
7h 57m
1 stop
MDT9:53 amHarrisburg
$392
United Airlines
Nov 17
MDT2:38 pmHarrisburg
11h 29m
2 stops
SEA11:07 pmSeattle/Tacoma Intl
Nov 30
SEA10:56 pmSeattle/Tacoma Intl
7h 57m
1 stop
MDT9:53 amHarrisburg
$398

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 10/17

12:10 pm-8:14 pm

1 stop11h 04m

Seattle/Tacoma Intl

Sat 10/24

9:42 pm-9:11 am

1 stop8h 29m

$361

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 10/7

12:10 pm-8:15 pm

1 stop11h 05m

Seattle/Tacoma Intl

Tue 10/13

11:59 pm-11:19 am

1 stop8h 20m

$361
Quickest round-trip

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Tue 11/17

5:05 pm-9:58 pm

1 stop7h 53m

Seattle/Tacoma Intl

Wed 12/2

1:36 pm-11:02 pm

1 stop6h 26m

$361

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 11/14

12:09 pm-6:37 pm

1 stop9h 28m

Seattle/Tacoma Intl

Wed 12/2

1:36 pm-11:02 pm

1 stop6h 26m

$361

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 10/17

3:15 pm-8:14 pm

1 stop7h 59m

Seattle/Tacoma Intl

Sat 10/24

8:24 am-9:15 pm

1 stop9h 51m

$361

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 11/7

8:15 am-4:26 pm

2 stops11h 11m

Seattle/Tacoma Intl

Wed 11/11

7:00 am-6:57 pm

1 stop8h 57m

$366

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Sat 11/14

5:05 pm-9:58 pm

1 stop7h 53m

Seattle/Tacoma Intl

Thu 12/3

1:36 pm-11:02 pm

1 stop6h 26m

$370

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 11/4

2:10 pm-7:03 pm

1 stop7h 53m

Seattle/Tacoma Intl

Mon 11/9

10:40 am-11:44 pm

2 stops10h 04m

$375

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Tue 10/6

6:08 am-11:44 am

1 stop8h 36m

Seattle/Tacoma Intl

Tue 10/13

9:29 pm-10:17 am

1 stop9h 48m

$615

HarrisburgSeattle

MDT Harrisburg - SEA Seattle/Tacoma Intl

MDTSEA

Harrisburg

Wed 11/18

6:34 am-2:31 pm

2 stops10h 57m

Seattle/Tacoma Intl

Mon 11/30

12:58 am-1:35 pm

1 stop9h 37m

$620

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 $596.
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 $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.

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

$219

Fastest flight time

7h 27m

Direct flights

None
The best one-way flight to Seattle from Harrisburg in the past 72 hours is $219. 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 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
8,553 reviews
Search Delta flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
10,194 reviews
Search United Airlines flights
American AirlinesPriceFrom $293Free CancellationRating
7.1
12,047 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $468Free CancellationRating
7.9
12,904 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
Lakewood
Federal Way
Fife
Puyallup
Tukwila
Lynnwood
Cle Elum
Marysville
Kirkland
Lacey
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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