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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 5/5. 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
3:16 pm - 10:18 pm
MDT
-
SEA
10h 02m1 stop
American Airlines Logo
11:18 pm - 11:33 am
SEA
-
MDT
9h 15m1 stop
$259American Airlines
jue., feb. 19 - lun., feb. 23
American Airlines Logo
12:52 pm - 9:21 pm
MDT
-
SEA
11h 29m2 stops
American Airlines Logo
10:57 pm - 11:32 am
SEA
-
MDT
9h 35m1 stop
$264American Airlines
mié., mar. 4 - lun., mar. 9
United Airlines Logo
2:33 pm - 10:45 pm
MDT
-
SEA
11h 12m2 stops
United Airlines Logo
11:59 pm - 1:51 pm
SEA
-
MDT
10h 52m2 stops
$269United Airlines
mié., mar. 18 - lun., mar. 23
American Airlines Logo
3:03 pm - 10:20 pm
MDT
-
SEA
10h 17m2 stops
American Airlines Logo
2:04 pm - 11:50 pm
SEA
-
MDT
6h 46m1 stop
$283American Airlines
vie., feb. 6 - dom., feb. 8
United Airlines Logo
5:36 pm - 10:45 pm
MDT
-
SEA
8h 09m1 stop
United Airlines Logo
11:59 pm - 1:51 pm
SEA
-
MDT
10h 52m2 stops
$300United Airlines
mié., mar. 11 - lun., mar. 16
American Airlines Logo
5:10 pm - 10:20 pm
MDT
-
SEA
8h 10m1 stop
American Airlines Logo
11:18 pm - 11:33 am
SEA
-
MDT
9h 15m1 stop
$319American Airlines
lun., feb. 9 - vie., feb. 13
American Airlines Logo
11:59 am - 7:15 pm
MDT
-
SEA
10h 16m2 stops
American Airlines Logo
1:39 pm - 11:47 pm
SEA
-
MDT
7h 08m1 stop
$324American Airlines
jue., feb. 19 - lun., feb. 23
United Airlines Logo
2:33 pm - 10:45 pm
MDT
-
SEA
11h 12m2 stops
United Airlines Logo
5:00 am - 4:47 pm
SEA
-
MDT
8h 47m2 stops
$356United Airlines
mié., mar. 25 - mié., abr. 1
United Airlines Logo
6:30 am - 11:32 am
MDT
-
SEA
8h 02m1 stop
United Airlines Logo
10:58 am - 9:05 pm
SEA
-
MDT
7h 07m1 stop
$359United Airlines
sáb., ene. 10 - mar., ene. 13
United Airlines Logo
6:30 am - 11:32 am
MDT
-
SEA
8h 02m1 stop
United Airlines Logo
5:10 pm - 9:35 am
SEA
-
MDT
13h 25m2 stops
$364United Airlines
sáb., ene. 10 - mar., ene. 13

Alaska Airlines flights from Harrisburg to Seattle

Our best Alaska Airlines deals on Harrisburg to Seattle flight tickets
Alaska Airlines
Jun 9
MDT4:32 pmHarrisburg
8h 58m
1 stop
SEA10:30 pmSeattle/Tacoma Intl
Jun 16
SEA6:00 amSeattle/Tacoma Intl
14h 35m
2 stops
MDT11:35 pmHarrisburg
$464
Find similar
Alaska Airlines
Jun 9
MDT4:32 pmHarrisburg
19h 46m
2 stops
SEA9:18 amSeattle/Tacoma Intl
Jun 16
SEA7:00 amSeattle/Tacoma Intl
13h 35m
2 stops
MDT11:35 pmHarrisburg
$474
Find similar
Alaska Airlines
May 15
MDT11:13 amHarrisburg
9h 41m
1 stop
SEA5:54 pmSeattle/Tacoma Intl
May 23
SEA7:00 amSeattle/Tacoma Intl
13h 35m
2 stops
MDT11:35 pmHarrisburg
$573
Find similar

United Airlines flights from Harrisburg to Seattle

Our best United Airlines deals on Harrisburg to Seattle flight tickets
United Airlines
Mar 18
MDT2:33 pmHarrisburg
11h 12m
2 stops
SEA10:45 pmSeattle/Tacoma Intl
Mar 23
SEA11:59 pmSeattle/Tacoma Intl
10h 52m
2 stops
MDT1:51 pmHarrisburg
$269
Find similar
United Airlines
Mar 11
MDT5:36 pmHarrisburg
8h 09m
1 stop
SEA10:45 pmSeattle/Tacoma Intl
Mar 16
SEA11:59 pmSeattle/Tacoma Intl
10h 52m
2 stops
MDT1:51 pmHarrisburg
$300
Find similar
United Airlines
Mar 25
MDT2:33 pmHarrisburg
11h 12m
2 stops
SEA10:45 pmSeattle/Tacoma Intl
Apr 1
SEA5:00 amSeattle/Tacoma Intl
8h 47m
2 stops
MDT4:47 pmHarrisburg
$356
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 15, 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

jue. 2/19

3:16 pm-10:18 pm

1 stop10h 02m

Seattle/Tacoma Intl

lun. 2/23

11:18 pm-11:33 am

1 stop9h 15m

$259

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 3/4

12:52 pm-9:21 pm

2 stops11h 29m

Seattle/Tacoma Intl

lun. 3/9

10:57 pm-11:32 am

1 stop9h 35m

$264

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 3/18

2:33 pm-10:45 pm

2 stops11h 12m

Seattle/Tacoma Intl

lun. 3/23

11:59 pm-1:51 pm

2 stops10h 52m

$269

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

vie. 2/6

3:03 pm-10:20 pm

2 stops10h 17m

Seattle/Tacoma Intl

dom. 2/8

2:04 pm-11:50 pm

1 stop6h 46m

$283

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 3/11

5:36 pm-10:45 pm

1 stop8h 09m

Seattle/Tacoma Intl

lun. 3/16

11:59 pm-1:51 pm

2 stops10h 52m

$300

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

lun. 2/9

5:10 pm-10:20 pm

1 stop8h 10m

Seattle/Tacoma Intl

vie. 2/13

11:18 pm-11:33 am

1 stop9h 15m

$319

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

jue. 2/19

11:59 am-7:15 pm

2 stops10h 16m

Seattle/Tacoma Intl

lun. 2/23

1:39 pm-11:47 pm

1 stop7h 08m

$324

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 3/25

2:33 pm-10:45 pm

2 stops11h 12m

Seattle/Tacoma Intl

mié. 4/1

5:00 am-4:47 pm

2 stops8h 47m

$356

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

sáb. 1/10

6:30 am-11:32 am

1 stop8h 02m

Seattle/Tacoma Intl

mar. 1/13

10:58 am-9:05 pm

1 stop7h 07m

$359

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

sáb. 1/10

6:30 am-11:32 am

1 stop8h 02m

Seattle/Tacoma Intl

mar. 1/13

5:10 pm-9:35 am

2 stops13h 25m

$364

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 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 $373. 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 $385.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Harrisburg is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $508. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Harrisburg because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $643.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Harrisburg at noon is the least expensive time of day to depart. momondo users have found prices as low as $454 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $578. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Harrisburg to Seattle/Tacoma Intl flight route?

Fly from Harrisburg to Seattle/Tacoma Intl for the best Harrisburg - Seattle/Tacoma Intl flight prices

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 $467 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.

What cabin class options are available on Harrisburg to Seattle/Tacoma Intl flights?

There is only 1 cabin class available to choose from on Harrisburg to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Harrisburg to Seattle flights?

You could potentially save up to 45% 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

8h 02m

Direct flights

None
The fastest flight from Harrisburg to Seattle takes 8h 02m
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 8h 02m.

  • 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
9,092 reviews
Search United Airlines flights
American AirlinesPriceFrom $286Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
DeltaPriceFrom $286Free CancellationRating
7.9
8,008 reviews
Search Delta flights
Alaska AirlinesPriceFrom $427Free CancellationRating
8.0
11,452 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
Cle Elum
Federal Way
Lakewood
Fife
Centralia
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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