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

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

Which layover airport offers the lowest fares from Seattle to Harrisburg?

Flights via Chicago (ORD) offer the lowest average round-trip price of $447.

Which layover airport has the shortest connection time from Seattle to Harrisburg?

Chicago (ORD) has the shortest average layover time for this route: 1h 07m.

What airlines fly to Harrisburg?

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Harrisburg from Seattle according to our data. Alaska Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Harrisburg. Keep in mind that there are 7 different airlines that fly to Harrisburg on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Seattle and Harrisburg?

Philadelphia (PHL) was the most common stop: 83% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Seattle to Harrisburg?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 6h 36m.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Harrisburg Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Harrisburg Airport refresh daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Harrisburg Airport?

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

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Harrisburg Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Harrisburg Airport.

What documentation or ID do you need to fly to Harrisburg Airport?

The travel and health documents you'll need for your trip to Harrisburg Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Harrisburg Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$160 Cheap Flights from Seattle to Harrisburg in 2026

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Find the cheapest flights from Seattle to Harrisburg

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:19 pm - 11:52 pm

SEA

MDT

7h 33m

1 stop

2:50 pm - 9:23 pm

MDT

SEA

9h 33m

1 stop

$319American Airlines

Sat, Apr 25 - Sat, May 2

11:59 pm - 1:55 pm

SEA

MDT

10h 56m

2 stops

5:52 pm - 10:42 pm

MDT

SEA

7h 50m

1 stop

$346United Airlines

Mon, Apr 20 - Mon, Apr 27

2:39 pm - 12:42 am

SEA

MDT

7h 03m

1 stop

6:15 am - 11:48 am

MDT

SEA

8h 33m

1 stop

$359United Airlines

Wed, Apr 8 - Wed, Apr 15

2:39 pm - 12:42 am

SEA

MDT

7h 03m

1 stop

2:41 pm - 11:46 pm

MDT

SEA

12h 05m

2 stops

$364United Airlines

Wed, Apr 8 - Wed, Apr 15

11:05 pm - 11:51 am

SEA

MDT

9h 46m

1 stop

5:00 pm - 10:05 pm

MDT

SEA

8h 05m

1 stop

$379Delta

Fri, Sep 4 - Mon, Sep 7

10:40 pm - 9:35 am

SEA

MDT

7h 55m

1 stop

5:50 pm - 11:59 pm

MDT

SEA

9h 09m

1 stop

$380United Airlines

Mon, Jun 8 - Sat, Jun 13

11:52 pm - 1:50 pm

SEA

MDT

10h 58m

2 stops

5:50 pm - 10:39 pm

MDT

SEA

7h 49m

1 stop

$386United Airlines

Mon, Jun 8 - Sat, Jun 13

1:19 pm - 11:52 pm

SEA

MDT

7h 33m

1 stop

6:43 pm - 12:36 am

MDT

SEA

8h 53m

1 stop

$389American Airlines

Thu, Apr 9 - Mon, Apr 13

7:37 pm - 10:09 am

SEA

MDT

11h 32m

2 stops

5:53 pm - 10:44 pm

MDT

SEA

7h 51m

1 stop

$392United Airlines

Wed, Apr 22 - Fri, Apr 24

12:29 am - 11:23 am

SEA

MDT

7h 54m

1 stop

4:36 pm - 11:29 pm

MDT

SEA

9h 53m

1 stop

$399Alaska Airlines

Fri, May 1 - Wed, May 6

Alaska Airlines flights from Seattle to Harrisburg

Our best Alaska Airlines deals on Seattle to Harrisburg flight tickets

Alaska Airlines

May 1

SEA12:29 amSeattle/Tacoma Intl

7h 54m

1 stop

MDT11:23 amHarrisburg

May 6

MDT4:36 pmHarrisburg

9h 53m

1 stop

SEA11:29 pmSeattle/Tacoma Intl

$399

Alaska Airlines

Apr 25

SEA9:32 amSeattle/Tacoma Intl

8h 37m

1 stop

MDT9:09 pmHarrisburg

May 2

MDT11:53 amHarrisburg

14h 00m

2 stops

SEA10:53 pmSeattle/Tacoma Intl

$404

Alaska Airlines

Apr 30

SEA12:29 amSeattle/Tacoma Intl

7h 54m

1 stop

MDT11:23 amHarrisburg

May 1

MDT4:36 pmHarrisburg

9h 53m

1 stop

SEA11:29 pmSeattle/Tacoma Intl

$548

Delta flights from Seattle to Harrisburg

Our best Delta deals on Seattle to Harrisburg flight tickets

Delta

Sep 4

SEA11:05 pmSeattle/Tacoma Intl

9h 46m

1 stop

MDT11:51 amHarrisburg

Sep 7

MDT5:00 pmHarrisburg

8h 05m

1 stop

SEA10:05 pmSeattle/Tacoma Intl

$379

Delta

Sep 4

SEA11:05 pmSeattle/Tacoma Intl

9h 46m

1 stop

MDT11:51 amHarrisburg

Sep 7

MDT5:00 pmHarrisburg

8h 05m

1 stop

SEA10:05 pmSeattle/Tacoma Intl

$409

Delta

Apr 3

SEA7:25 amSeattle/Tacoma Intl

13h 16m

2 stops

MDT11:41 pmHarrisburg

Apr 12

MDT1:24 pmHarrisburg

10h 49m

2 stops

SEA9:13 pmSeattle/Tacoma Intl

$2,940

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sat 4/25

1:19 pm-11:52 pm

1 stop7h 33m

Harrisburg

Sat 5/2

2:50 pm-9:23 pm

1 stop9h 33m

$319

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Mon 4/20

11:59 pm-1:55 pm

2 stops10h 56m

Harrisburg

Mon 4/27

5:52 pm-10:42 pm

1 stop7h 50m

$346

Quickest round-trip

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Wed 4/8

2:39 pm-12:42 am

1 stop7h 03m

Harrisburg

Wed 4/15

6:15 am-11:48 am

1 stop8h 33m

$359

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Wed 4/8

2:39 pm-12:42 am

1 stop7h 03m

Harrisburg

Wed 4/15

2:41 pm-11:46 pm

2 stops12h 05m

$364

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Fri 9/4

11:05 pm-11:51 am

1 stop9h 46m

Harrisburg

Mon 9/7

5:00 pm-10:05 pm

1 stop8h 05m

$379

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Mon 6/8

10:40 pm-9:35 am

1 stop7h 55m

Harrisburg

Sat 6/13

5:50 pm-11:59 pm

1 stop9h 09m

$380

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Mon 6/8

11:52 pm-1:50 pm

2 stops10h 58m

Harrisburg

Sat 6/13

5:50 pm-10:39 pm

1 stop7h 49m

$386

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Thu 4/9

1:19 pm-11:52 pm

1 stop7h 33m

Harrisburg

Mon 4/13

6:43 pm-12:36 am

1 stop8h 53m

$389

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Wed 4/22

7:37 pm-10:09 am

2 stops11h 32m

Harrisburg

Fri 4/24

5:53 pm-10:44 pm

1 stop7h 51m

$392

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Fri 5/1

12:29 am-11:23 am

1 stop7h 54m

Harrisburg

Wed 5/6

4:36 pm-11:29 pm

1 stop9h 53m

$399

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 Seattle to Harrisburg

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

Layovers

What is the cheapest month to fly to Harrisburg?

The month of November is, on average, the cheapest month to fly to Harrisburg from Seattle, with most prices found around $367. If you aren’t able to travel to Harrisburg during the month of November, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $386.

How have Seattle to Harrisburg flight prices changed over time?

As of March 2026, prices for Seattle to Harrisburg flights are approximately 64% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Harrisburg

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Harrisburg according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Harrisburg (SEA to MDT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Harrisburg

Fastest flight time	7h 01m
Direct flights	None

The fastest flight from Seattle to Harrisburg takes 7h 01m

There are no direct flights from Seattle to Harrisburg. There are no popular flight routes from Seattle to Harrisburg.

Search flight deals

How far is Seattle/Tacoma Intl to Harrisburg by plane?
The straight-line distance from Seattle/Tacoma Intl to Harrisburg is 2281.5 mi. In terms of flight time, this usually takes a little over 7h 01m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Harrisburg Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Harrisburg Airport refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Harrisburg Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Harrisburg Airport is 4 as of March 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Harrisburg Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Harrisburg Airport.
What documentation or ID do you need to fly to Harrisburg Airport?
The travel and health documents you'll need for your trip to Harrisburg Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Harrisburg Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Harrisburg?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Harrisburg is American Airlines (50% of total bookings). The next most popular airlines are United Airlines (35%), Delta (9%), and Alaska Airlines (6%).

Best airlines flying from Seattle to Harrisburg

Compare and see reviews for airlines that fly from Seattle to Harrisburg with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $193	Free Cancellation	Rating 7.9 8,319 reviews	Search Delta flights
United Airlines	PriceFrom $193	Free Cancellation	Rating 7.4 9,462 reviews	Search United Airlines flights
American Airlines	PriceFrom $259	Free Cancellation	Rating 7.1 11,488 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $412	Free Cancellation	Rating 7.9 12,098 reviews	Search Alaska Airlines flights

Hershey

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Mechanicsburg

Camp Hill

Hummelstown

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Harrisburg?

Finding the right flight to Harrisburg from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Harrisburg quick and easy, saving you time and money.

Can I find flights from Seattle to Harrisburg with flexible booking policies on momondo?

Flights from Seattle to Harrisburg with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Harrisburg?

Once you have performed a search for Seattle to Harrisburg flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seattle to Harrisburg right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Harrisburg flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.