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

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $481.

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

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 7h 33m.

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.

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 8 different airlines that fly to Harrisburg on a routine basis, so you have a few additional options to choose from.

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

Philadelphia (PHL) has the shortest average layover time for this route: 1h 16m.

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

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

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 November 2025.

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.

$130 Cheap Flights from Seattle to Harrisburg in 2025/26

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11:15 pm - 9:35 amSEA-MDT

7h 20m1 stop

6:30 am - 11:32 amMDT-SEA

8h 02m1 stop

$259United Airlines

Find Deal

Mon, Jan 5 - Sun, Jan 11

11:59 pm - 1:51 pmSEA-MDT

10h 52m2 stops

6:30 am - 11:32 amMDT-SEA

8h 02m1 stop

$264United Airlines

Find Deal

Mon, Jan 5 - Sun, Jan 11

7:12 pm - 9:35 amSEA-MDT

11h 23m2 stops

2:28 pm - 9:15 pmMDT-SEA

9h 47m2 stops

$269United Airlines

Find Deal

Mon, Jan 5 - Sun, Jan 11

11:55 am - 10:52 pmSEA-MDT

7h 57m1 stop

5:10 pm - 10:20 pmMDT-SEA

8h 10m1 stop

$319American Airlines

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Sun, Jan 11 - Sun, Jan 25

11:15 pm - 11:56 amSEA-MDT

9h 41m1 stop

6:00 am - 10:40 amMDT-SEA

7h 40m1 stop

$339Delta

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Tue, Dec 9 - Sat, Dec 13

5:00 am - 6:43 pmSEA-MDT

10h 43m2 stops

3:00 pm - 8:54 pmMDT-SEA

8h 54m1 stop

$344United Airlines

Find Deal

Tue, Dec 9 - Sat, Dec 13

10:50 am - 10:52 pmSEA-MDT

9h 02m1 stop

5:45 am - 11:45 amMDT-SEA

9h 00m1 stop

$359American Airlines

Find Deal

Tue, Jan 20 - Sat, Jan 24

8:40 am - 8:57 pmSEA-MDT

9h 17m2 stops

3:00 pm - 10:28 pmMDT-SEA

10h 28m2 stops

$363United Airlines

Find Deal

Tue, Dec 9 - Sat, Dec 13

7:35 am - 11:37 pmSEA-MDT

13h 02m2 stops

5:45 am - 11:45 amMDT-SEA

9h 00m1 stop

$364American Airlines

Find Deal

Tue, Jan 20 - Sat, Jan 24

6:00 am - 11:37 pmSEA-MDT

14h 37m2 stops

10:42 am - 10:20 pmMDT-SEA

14h 38m2 stops

$369American Airlines

Find Deal

Tue, Jan 20 - Sat, Jan 24

United Airlines flights from Seattle to Harrisburg

Our best United Airlines deals on Seattle to Harrisburg flight tickets

United Airlines

Jan 5

SEA11:15 pmSeattle/Tacoma Intl

7h 20m

1 stop

MDT9:35 amHarrisburg

Jan 11

MDT6:30 amHarrisburg

8h 02m

1 stop

SEA11:32 amSeattle/Tacoma Intl

$259

Find similar

United Airlines

Jan 5

SEA11:59 pmSeattle/Tacoma Intl

10h 52m

2 stops

MDT1:51 pmHarrisburg

Jan 11

MDT6:30 amHarrisburg

8h 02m

1 stop

SEA11:32 amSeattle/Tacoma Intl

$264

Find similar

United Airlines

Jan 5

SEA7:12 pmSeattle/Tacoma Intl

11h 23m

2 stops

MDT9:35 amHarrisburg

Jan 11

MDT2:28 pmHarrisburg

9h 47m

2 stops

SEA9:15 pmSeattle/Tacoma Intl

$269

Find similar

American Airlines flights from Seattle to Harrisburg

Our best American Airlines deals on Seattle to Harrisburg flight tickets

American Airlines

Jan 11

SEA11:55 amSeattle/Tacoma Intl

7h 57m

1 stop

MDT10:52 pmHarrisburg

Jan 25

MDT5:10 pmHarrisburg

8h 10m

1 stop

SEA10:20 pmSeattle/Tacoma Intl

$319

Find similar

American Airlines

Jan 20

SEA10:50 amSeattle/Tacoma Intl

9h 02m

1 stop

MDT10:52 pmHarrisburg

Jan 24

MDT5:45 amHarrisburg

9h 00m

1 stop

SEA11:45 amSeattle/Tacoma Intl

$359

Find similar

American Airlines

Jan 20

SEA7:35 amSeattle/Tacoma Intl

13h 02m

2 stops

MDT11:37 pmHarrisburg

Jan 24

MDT5:45 amHarrisburg

9h 00m

1 stop

SEA11:45 amSeattle/Tacoma Intl

$364

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Mon 1/5

11:15 pm-9:35 am

1 stop7h 20m

Harrisburg

Sun 1/11

6:30 am-11:32 am

1 stop8h 02m

$259

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Mon 1/5

11:59 pm-1:51 pm

2 stops10h 52m

Harrisburg

Sun 1/11

6:30 am-11:32 am

1 stop8h 02m

$264

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Mon 1/5

7:12 pm-9:35 am

2 stops11h 23m

Harrisburg

Sun 1/11

2:28 pm-9:15 pm

2 stops9h 47m

$269

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sun 1/11

11:55 am-10:52 pm

1 stop7h 57m

Harrisburg

Sun 1/25

5:10 pm-10:20 pm

1 stop8h 10m

$319

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 12/9

11:15 pm-11:56 am

1 stop9h 41m

Harrisburg

Sat 12/13

6:00 am-10:40 am

1 stop7h 40m

$339

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 12/9

5:00 am-6:43 pm

2 stops10h 43m

Harrisburg

Sat 12/13

3:00 pm-8:54 pm

1 stop8h 54m

$344

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 1/20

10:50 am-10:52 pm

1 stop9h 02m

Harrisburg

Sat 1/24

5:45 am-11:45 am

1 stop9h 00m

$359

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 12/9

8:40 am-8:57 pm

2 stops9h 17m

Harrisburg

Sat 12/13

3:00 pm-10:28 pm

2 stops10h 28m

$363

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 1/20

7:35 am-11:37 pm

2 stops13h 02m

Harrisburg

Sat 1/24

5:45 am-11:45 am

1 stop9h 00m

$364

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 1/20

6:00 am-11:37 pm

2 stops14h 37m

Harrisburg

Sat 1/24

10:42 am-10:20 pm

2 stops14h 38m

$369

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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 April is, on average, the cheapest month to fly to Harrisburg from Seattle, with most prices found around $386. If you aren’t able to travel to Harrisburg during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $403.

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

The cheapest day to depart from Seattle to Harrisburg is on a Wednesday. Travelers who choose to depart for Harrisburg on a Wednesday will often find tickets for as low as $455. On the other hand, Saturday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $802.

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

Our data shows that the cheapest Seattle to Harrisburg flights are usually those with departure times at noon. Our users have found flights to Harrisburg at noon for as low as $471. Try not to purchase tickets in the evening because they tend to be around $543. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Harrisburg?

You are more likely to see cheaper flights to Harrisburg from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Harrisburg for around $479 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Harrisburg from Seattle for as low as $328 on momondo.

How have Seattle to Harrisburg flight prices changed over time?

As of November 2025, prices for Seattle to Harrisburg flights are approximately 37% 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 13m
Direct flights	None

The fastest flight from Seattle to Harrisburg takes 7h 13m

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 6h 53m.
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 November 2025.
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 plane model from Seattle to Harrisburg?
Based on momondo bookings for flights between Seattle and Harrisburg, the leading plane model is Airbus A319, making up 100.00% of the total bookings.
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 (48% of total bookings). The next most popular airlines are United Airlines (34%), Delta (13%), and Alaska Airlines (5%).

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 $226	Free Cancellation	Rating 7.9 7,998 reviews	Search Delta flights
United Airlines	PriceFrom $286	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
American Airlines	PriceFrom $286	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $412	Free Cancellation	Rating 8.0 11,352 reviews	Search Alaska Airlines flights

Hershey

Carlisle

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.

An easier way to manage your Harrisburg trip

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Cheap flights from Seattle to Harrisburg 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 Seattle to Harrisburg departing on 4/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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

What is the cheapest month to fly to Harrisburg?

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

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

How far in advance should I book a flight to Harrisburg?

How have Seattle to Harrisburg flight prices changed over time?

As of November 2025, prices for Seattle to Harrisburg flights are approximately 37% more expensive when compared to flights at the same time last year.

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

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

What airlines fly to Harrisburg?

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 offers the lowest fares from Seattle to Harrisburg?

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $481.

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

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 7h 33m.

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

Philadelphia (PHL) has the shortest average layover time for this route: 1h 16m.

When to book flights from Seattle to Harrisburg

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

Direct flights

How far is Seattle/Tacoma Intl to Harrisburg by plane?

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

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

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

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

What is the most popular plane model from Seattle to Harrisburg?

What is the most popular airline from Seattle to Harrisburg?

Best airlines flying from Seattle to Harrisburg

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

Traveling to a place near Harrisburg?

Why use momondo?

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

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

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

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

An easier way to manage your Harrisburg trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Pennsylvania