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Cheap flights from Harrisburg to Seattle from $130

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 1/18. 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
0 bags

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Find the cheapest flights from Harrisburg to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:31 pm - 12:24 am
MDT
-
SEA
8h 53m1 stop
American Airlines Logo
7:15 am - 5:50 pm
SEA
-
MDT
7h 35m1 stop
$259American Airlines
sáb., feb. 21 - lun., feb. 23
United Airlines Logo
8:00 pm - 12:45 am
MDT
-
SEA
7h 45m1 stop
United Airlines Logo
7:10 pm - 9:24 am
SEA
-
MDT
11h 14m2 stops
$264United Airlines
vie., jun. 26 - sáb., jul. 4
United Airlines Logo
10:40 am - 7:03 pm
MDT
-
SEA
11h 23m2 stops
United Airlines Logo
5:00 am - 4:51 pm
SEA
-
MDT
8h 51m2 stops
$269United Airlines
mié., mar. 11 - mar., abr. 21
American Airlines Logo
6:15 am - 12:53 pm
MDT
-
SEA
9h 38m1 stop
American Airlines Logo
10:57 pm - 9:26 am
SEA
-
MDT
7h 29m1 stop
$278American Airlines
jue., feb. 19 - lun., feb. 23
American Airlines Logo
12:53 pm - 8:45 pm
MDT
-
SEA
10h 52m1 stop
American Airlines Logo
2:04 pm - 11:50 pm
SEA
-
MDT
6h 46m1 stop
$299American Airlines
sáb., ene. 17 - lun., ene. 19
United Airlines Logo
6:30 am - 3:44 pm
MDT
-
SEA
12h 14m2 stops
United Airlines Logo
5:10 pm - 9:35 am
SEA
-
MDT
13h 25m2 stops
$303United Airlines
mié., ene. 28 - mié., feb. 4
United Airlines Logo
2:28 pm - 10:43 pm
MDT
-
SEA
11h 15m2 stops
United Airlines Logo
7:30 pm - 9:35 am
SEA
-
MDT
11h 05m2 stops
$314United Airlines
lun., ene. 26 - lun., feb. 2
United Airlines Logo
6:30 am - 11:40 am
MDT
-
SEA
8h 10m1 stop
United Airlines Logo
11:20 pm - 9:24 am
SEA
-
MDT
7h 04m1 stop
$320United Airlines
dom., may. 24 - lun., jun. 1
United Airlines Logo
6:30 am - 11:40 am
MDT
-
SEA
8h 10m1 stop
United Airlines Logo
7:10 pm - 9:24 am
SEA
-
MDT
11h 14m2 stops
$325United Airlines
dom., may. 24 - lun., jun. 1
United Airlines Logo
6:29 am - 11:49 am
MDT
-
SEA
8h 20m1 stop
United Airlines Logo
7:29 pm - 9:37 am
SEA
-
MDT
11h 08m2 stops
$329United Airlines
sáb., feb. 21 - lun., feb. 23

American Airlines flights from Harrisburg to Seattle

Our best American Airlines deals on Harrisburg to Seattle flight tickets
American Airlines
Feb 21
MDT6:31 pmHarrisburg
8h 53m
1 stop
SEA12:24 amSeattle/Tacoma Intl
Feb 23
SEA7:15 amSeattle/Tacoma Intl
7h 35m
1 stop
MDT5:50 pmHarrisburg
$259
Find similar
American Airlines
Feb 19
MDT6:15 amHarrisburg
9h 38m
1 stop
SEA12:53 pmSeattle/Tacoma Intl
Feb 23
SEA10:57 pmSeattle/Tacoma Intl
7h 29m
1 stop
MDT9:26 amHarrisburg
$278
Find similar
American Airlines
Jan 17
MDT12:53 pmHarrisburg
10h 52m
1 stop
SEA8:45 pmSeattle/Tacoma Intl
Jan 19
SEA2:04 pmSeattle/Tacoma Intl
6h 46m
1 stop
MDT11:50 pmHarrisburg
$299
Find similar

United Airlines flights from Harrisburg to Seattle

Our best United Airlines deals on Harrisburg to Seattle flight tickets
United Airlines
Jun 26
MDT8:00 pmHarrisburg
7h 45m
1 stop
SEA12:45 amSeattle/Tacoma Intl
Jul 4
SEA7:10 pmSeattle/Tacoma Intl
11h 14m
2 stops
MDT9:24 amHarrisburg
$264
Find similar
United Airlines
Mar 11
MDT10:40 amHarrisburg
11h 23m
2 stops
SEA7:03 pmSeattle/Tacoma Intl
Apr 21
SEA5:00 amSeattle/Tacoma Intl
8h 51m
2 stops
MDT4:51 pmHarrisburg
$269
Find similar
United Airlines
Jan 28
MDT6:30 amHarrisburg
12h 14m
2 stops
SEA3:44 pmSeattle/Tacoma Intl
Feb 4
SEA5:10 pmSeattle/Tacoma Intl
13h 25m
2 stops
MDT9:35 amHarrisburg
$303
Find similar

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 diciembre 31, 2025.
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

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

sáb. 2/21

6:31 pm-12:24 am

1 stop8h 53m

Seattle/Tacoma Intl

lun. 2/23

7:15 am-5:50 pm

1 stop7h 35m

$259

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

vie. 6/26

8:00 pm-12:45 am

1 stop7h 45m

Seattle/Tacoma Intl

sáb. 7/4

7:10 pm-9:24 am

2 stops11h 14m

$264

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 3/11

10:40 am-7:03 pm

2 stops11h 23m

Seattle/Tacoma Intl

mar. 4/21

5:00 am-4:51 pm

2 stops8h 51m

$269

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

jue. 2/19

6:15 am-12:53 pm

1 stop9h 38m

Seattle/Tacoma Intl

lun. 2/23

10:57 pm-9:26 am

1 stop7h 29m

$278

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

sáb. 1/17

12:53 pm-8:45 pm

1 stop10h 52m

Seattle/Tacoma Intl

lun. 1/19

2:04 pm-11:50 pm

1 stop6h 46m

$299

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 1/28

6:30 am-3:44 pm

2 stops12h 14m

Seattle/Tacoma Intl

mié. 2/4

5:10 pm-9:35 am

2 stops13h 25m

$303

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

lun. 1/26

2:28 pm-10:43 pm

2 stops11h 15m

Seattle/Tacoma Intl

lun. 2/2

7:30 pm-9:35 am

2 stops11h 05m

$314

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

dom. 5/24

6:30 am-11:40 am

1 stop8h 10m

Seattle/Tacoma Intl

lun. 6/1

11:20 pm-9:24 am

1 stop7h 04m

$320

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

dom. 5/24

6:30 am-11:40 am

1 stop8h 10m

Seattle/Tacoma Intl

lun. 6/1

7:10 pm-9:24 am

2 stops11h 14m

$325

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

sáb. 2/21

6:29 am-11:49 am

1 stop8h 20m

Seattle/Tacoma Intl

lun. 2/23

7:29 pm-9:37 am

2 stops11h 08m

$329

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?

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 $344. 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 $373.

How far in advance should I book a flight 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 $466 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 $345 on momondo.

Can stopping save me money on Harrisburg to Seattle flights?

You could potentially save up to 20% 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 December 2025, prices for Harrisburg to Seattle flights are approximately 6% 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

Fastest flight time

7h 45m

Direct flights

None
The fastest flight from Harrisburg to Seattle takes 7h 45m
There are no direct flights from Harrisburg to Seattle. There are no popular flight routes from Harrisburg to Seattle.
Search flight deals

  • 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 45m.

  • 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
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,124 reviews
Search United Airlines flights
American AirlinesPriceFrom $286Free CancellationRating
7.2
11,074 reviews
Search American Airlines flights
DeltaPriceFrom $286Free CancellationRating
7.9
8,013 reviews
Search Delta flights
Alaska AirlinesPriceFrom $427Free CancellationRating
8.0
11,583 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
Kent
Marysville
Puyallup
Redmond
Tukwila
Federal Way
Cle Elum
Lakewood
Centralia
Fife
Westport
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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