What is the cheapest airline that flies from Harrisburg to Seattle/Tacoma Intl?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Harrisburg to Seattle/Tacoma Intl

What airlines fly to Seattle?

Alaska Airlines, American Airlines and United Airlines are the top three most popular airlines that fly to Seattle from Harrisburg according to our data. Alaska Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 9 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Harrisburg Airport to Seattle/Tacoma Intl Airport is 4 as of January 2026.

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.

$130 Cheap Flights from Harrisburg to Seattle in 2026

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Find the cheapest flights from Harrisburg to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:31 pm - 11:04 pm

MDT

SEA

7h 33m

1 stop

6:00 am - 4:13 pm

SEA

MDT

7h 13m

1 stop

$259American Airlines

mié., mar. 4 - mié., mar. 18

5:40 pm - 10:43 pm

MDT

SEA

8h 03m

1 stop

7:10 pm - 9:37 am

SEA

MDT

11h 27m

2 stops

$264United Airlines

mar., feb. 17 - jue., feb. 19

5:06 pm - 12:55 am

MDT

SEA

10h 49m

2 stops

6:00 am - 4:16 pm

SEA

MDT

7h 16m

1 stop

$283American Airlines

vie., feb. 27 - lun., mar. 2

10:40 am - 7:03 pm

MDT

SEA

11h 23m

2 stops

11:59 pm - 10:00 am

SEA

MDT

7h 01m

1 stop

$297United Airlines

mié., mar. 4 - mié., mar. 18

2:59 pm - 9:57 pm

MDT

SEA

9h 58m

1 stop

10:57 pm - 9:21 am

SEA

MDT

7h 24m

1 stop

$299American Airlines

lun., feb. 16 - jue., feb. 19

5:40 pm - 10:43 pm

MDT

SEA

8h 03m

1 stop

7:10 pm - 9:37 am

SEA

MDT

11h 27m

2 stops

$334United Airlines

lun., feb. 16 - jue., feb. 19

12:43 pm - 8:45 pm

MDT

SEA

11h 02m

1 stop

10:57 pm - 9:21 am

SEA

MDT

7h 24m

1 stop

$339American Airlines

mié., feb. 11 - dom., feb. 15

6:25 am - 2:10 pm

MDT

SEA

10h 45m

2 stops

10:57 pm - 9:21 am

SEA

MDT

7h 24m

1 stop

$344American Airlines

mié., feb. 11 - dom., feb. 15

5:50 pm - 10:46 pm

MDT

SEA

7h 56m

1 stop

11:52 pm - 10:09 am

SEA

MDT

7h 17m

1 stop

$359United Airlines

mar., jun. 9 - mar., jun. 16

10:40 am - 7:03 pm

MDT

SEA

11h 23m

2 stops

11:59 pm - 10:00 am

SEA

MDT

7h 01m

1 stop

$364United Airlines

mié., mar. 4 - lun., mar. 9

American Airlines flights from Harrisburg to Seattle

Our best American Airlines deals on Harrisburg to Seattle flight tickets

American Airlines

Mar 4

MDT6:31 pmHarrisburg

7h 33m

1 stop

SEA11:04 pmSeattle/Tacoma Intl

Mar 18

SEA6:00 amSeattle/Tacoma Intl

7h 13m

1 stop

MDT4:13 pmHarrisburg

$259

American Airlines

Feb 27

MDT5:06 pmHarrisburg

10h 49m

2 stops

SEA12:55 amSeattle/Tacoma Intl

Mar 2

SEA6:00 amSeattle/Tacoma Intl

7h 16m

1 stop

MDT4:16 pmHarrisburg

$283

American Airlines

Feb 16

MDT2:59 pmHarrisburg

9h 58m

1 stop

SEA9:57 pmSeattle/Tacoma Intl

Feb 19

SEA10:57 pmSeattle/Tacoma Intl

7h 24m

1 stop

MDT9:21 amHarrisburg

$299

Delta flights from Harrisburg to Seattle

Our best Delta deals on Harrisburg to Seattle flight tickets

Delta

Jul 28

MDT6:25 pmHarrisburg

8h 38m

1 stop

SEA12:03 amSeattle/Tacoma Intl

Aug 8

SEA5:30 pmSeattle/Tacoma Intl

27h 10m

1 stop

MDT11:40 pmHarrisburg

$482

Delta

Jul 28

MDT6:25 pmHarrisburg

8h 38m

1 stop

SEA12:03 amSeattle/Tacoma Intl

Aug 4

SEA6:05 amSeattle/Tacoma Intl

13h 39m

2 stops

MDT10:44 pmHarrisburg

$492

Delta

Jun 9

MDT6:25 pmHarrisburg

8h 41m

1 stop

SEA12:06 amSeattle/Tacoma Intl

Jun 16

SEA11:05 pmSeattle/Tacoma Intl

9h 46m

1 stop

MDT11:51 amHarrisburg

$507

Fly from

Fly to

Route

Depart

Return

Price

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 3/4

6:31 pm-11:04 pm

1 stop7h 33m

Seattle/Tacoma Intl

mié. 3/18

6:00 am-4:13 pm

1 stop7h 13m

$259

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mar. 2/17

5:40 pm-10:43 pm

1 stop8h 03m

Seattle/Tacoma Intl

jue. 2/19

7:10 pm-9:37 am

2 stops11h 27m

$264

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

vie. 2/27

5:06 pm-12:55 am

2 stops10h 49m

Seattle/Tacoma Intl

lun. 3/2

6:00 am-4:16 pm

1 stop7h 16m

$283

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 3/4

10:40 am-7:03 pm

2 stops11h 23m

Seattle/Tacoma Intl

mié. 3/18

11:59 pm-10:00 am

1 stop7h 01m

$297

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

lun. 2/16

2:59 pm-9:57 pm

1 stop9h 58m

Seattle/Tacoma Intl

jue. 2/19

10:57 pm-9:21 am

1 stop7h 24m

$299

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

lun. 2/16

5:40 pm-10:43 pm

1 stop8h 03m

Seattle/Tacoma Intl

jue. 2/19

7:10 pm-9:37 am

2 stops11h 27m

$334

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 2/11

12:43 pm-8:45 pm

1 stop11h 02m

Seattle/Tacoma Intl

dom. 2/15

10:57 pm-9:21 am

1 stop7h 24m

$339

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 2/11

6:25 am-2:10 pm

2 stops10h 45m

Seattle/Tacoma Intl

dom. 2/15

10:57 pm-9:21 am

1 stop7h 24m

$344

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mar. 6/9

5:50 pm-10:46 pm

1 stop7h 56m

Seattle/Tacoma Intl

mar. 6/16

11:52 pm-10:09 am

1 stop7h 17m

$359

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

mié. 3/4

10:40 am-7:03 pm

2 stops11h 23m

Seattle/Tacoma Intl

lun. 3/9

11:59 pm-10:00 am

1 stop7h 01m

$364

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 March to fly from Harrisburg, when ticket prices are also cheap, with an average price of $365.

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 $462 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 4% 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 January 2026, prices for Harrisburg to Seattle flights are approximately 62% 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 42m
Direct flights	None

The fastest flight from Harrisburg to Seattle takes 7h 42m

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 42m.
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?
The number of operators available for flights from Harrisburg Airport to Seattle/Tacoma Intl Airport is 4 as of January 2026.
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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Harrisburg to Seattle is American Airlines (51% of total bookings). The next most popular airlines are United Airlines (35%), Delta (8%), and Alaska Airlines (7%).

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 Airlines	PriceFrom $259	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
American Airlines	PriceFrom $286	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
Delta	PriceFrom $286	Free Cancellation	Rating 7.9 8,127 reviews	Search Delta flights
Alaska Airlines	PriceFrom $427	Free Cancellation	Rating 8.0 11,807 reviews	Search Alaska Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Redmond

Cle Elum

Tukwila

Lakewood

Federal Way

Centralia

Westport

Kirkland

Fife

Tumwater

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.