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

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

What airlines fly to Harrisburg?

Alaska Airlines, Delta and American 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 53% 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.

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 3 as of September 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.

$154 Cheap Flights from Seattle to Harrisburg in 2025/26

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Find the cheapest flights from Seattle to Harrisburg

Round-trip

One-way

Last minute

Cheap round-trip flights

12:34 am - 10:57 amSEA-MDT

7h 23m1 stop

6:44 am - 12:45 pmMDT-SEA

9h 01m1 stop

$278American Airlines

Find Deal

Wed, Oct 22 - Fri, Oct 31

12:34 am - 10:57 amSEA-MDT

7h 23m1 stop

6:00 am - 1:46 pmMDT-SEA

10h 46m2 stops

$283American Airlines

Find Deal

Wed, Oct 22 - Fri, Oct 31

6:00 am - 5:25 pmSEA-MDT

8h 25m1 stop

6:25 pm - 12:16 amMDT-SEA

8h 51m1 stop

$307Delta

Find Deal

Tue, Mar 10 - Wed, Mar 11

7:37 pm - 9:29 amSEA-MDT

10h 52m2 stops

5:48 pm - 10:30 pmMDT-SEA

7h 42m1 stop

$312United Airlines

Find Deal

Tue, Oct 14 - Wed, Oct 22

11:44 am - 11:13 pmSEA-MDT

8h 29m1 stop

6:51 am - 2:48 pmMDT-SEA

10h 57m1 stop

$332American Airlines

Find Deal

Fri, Oct 24 - Mon, Oct 27

11:40 am - 11:08 pmSEA-MDT

8h 28m1 stop

6:00 am - 2:01 pmMDT-SEA

11h 01m1 stop

$333Delta

Find Deal

Thu, Oct 23 - Fri, Oct 31

12:34 am - 11:10 amSEA-MDT

7h 36m1 stop

6:15 am - 11:03 amMDT-SEA

7h 48m1 stop

$352American Airlines

Find Deal

Mon, Oct 13 - Wed, Oct 22

7:13 pm - 9:35 amSEA-MDT

11h 22m2 stops

2:35 pm - 8:54 pmMDT-SEA

9h 19m1 stop

$382United Airlines

Find Deal

Thu, Nov 20 - Mon, Nov 24

12:17 am - 11:10 amSEA-MDT

7h 53m1 stop

9:02 pm - 7:05 pmMDT-SEA

25h 03m2 stops

$520Multiple Airlines

Find Deal

Tue, Oct 21 - Mon, Nov 3

12:17 am - 10:57 amSEA-MDT

7h 40m1 stop

6:31 pm - 7:05 pmMDT-SEA

27h 34m2 stops

$549Multiple Airlines

Find Deal

Thu, Oct 23 - Mon, Oct 27

American Airlines flights from Seattle to Harrisburg

Our best American Airlines deals on Seattle to Harrisburg flight tickets

American Airlines

Oct 22

SEA12:34 amSeattle/Tacoma Intl

7h 23m

1 stop

MDT10:57 amHarrisburg

Oct 31

MDT6:44 amHarrisburg

9h 01m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

$278

Find similar

American Airlines

Oct 22

SEA12:34 amSeattle/Tacoma Intl

7h 23m

1 stop

MDT10:57 amHarrisburg

Oct 31

MDT6:00 amHarrisburg

10h 46m

2 stops

SEA1:46 pmSeattle/Tacoma Intl

$283

Find similar

American Airlines

Oct 24

SEA11:44 amSeattle/Tacoma Intl

8h 29m

1 stop

MDT11:13 pmHarrisburg

Oct 27

MDT6:51 amHarrisburg

10h 57m

1 stop

SEA2:48 pmSeattle/Tacoma Intl

$332

Find similar

Delta flights from Seattle to Harrisburg

Our best Delta deals on Seattle to Harrisburg flight tickets

Delta

Mar 10

SEA6:00 amSeattle/Tacoma Intl

8h 25m

1 stop

MDT5:25 pmHarrisburg

Mar 11

MDT6:25 pmHarrisburg

8h 51m

1 stop

SEA12:16 amSeattle/Tacoma Intl

$307

Find similar

Delta

Oct 23

SEA11:40 amSeattle/Tacoma Intl

8h 28m

1 stop

MDT11:08 pmHarrisburg

Oct 31

MDT6:00 amHarrisburg

11h 01m

1 stop

SEA2:01 pmSeattle/Tacoma Intl

$333

Find similar

Delta

Oct 22

SEA11:40 amSeattle/Tacoma Intl

8h 28m

1 stop

MDT11:08 pmHarrisburg

Nov 3

MDT5:00 pmHarrisburg

8h 03m

1 stop

SEA10:03 pmSeattle/Tacoma Intl

$388

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Wed 10/22

12:34 am-10:57 am

1 stop7h 23m

Harrisburg

Fri 10/31

6:44 am-12:45 pm

1 stop9h 01m

$278

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Wed 10/22

12:34 am-10:57 am

1 stop7h 23m

Harrisburg

Fri 10/31

6:00 am-1:46 pm

2 stops10h 46m

$283

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 3/10

6:00 am-5:25 pm

1 stop8h 25m

Harrisburg

Wed 3/11

6:25 pm-12:16 am

1 stop8h 51m

$307

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 10/14

7:37 pm-9:29 am

2 stops10h 52m

Harrisburg

Wed 10/22

5:48 pm-10:30 pm

1 stop7h 42m

$312

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Fri 10/24

11:44 am-11:13 pm

1 stop8h 29m

Harrisburg

Mon 10/27

6:51 am-2:48 pm

1 stop10h 57m

$332

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Thu 10/23

11:40 am-11:08 pm

1 stop8h 28m

Harrisburg

Fri 10/31

6:00 am-2:01 pm

1 stop11h 01m

$333

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Mon 10/13

12:34 am-11:10 am

1 stop7h 36m

Harrisburg

Wed 10/22

6:15 am-11:03 am

1 stop7h 48m

$352

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Thu 11/20

7:13 pm-9:35 am

2 stops11h 22m

Harrisburg

Mon 11/24

2:35 pm-8:54 pm

1 stop9h 19m

$382

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 10/21

12:17 am-11:10 am

1 stop7h 53m

Harrisburg

Mon 11/3

9:02 pm-7:05 pm

2 stops25h 03m

$520

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Thu 10/23

12:17 am-10:57 am

1 stop7h 40m

Harrisburg

Mon 10/27

6:31 pm-7:05 pm

2 stops27h 34m

$549

Flights are sorted by cheapest round-trip flights first.

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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

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 $526 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 $339 on momondo.

How have Seattle to Harrisburg flight prices changed over time?

As of September 2025, prices for Seattle to Harrisburg flights are approximately 25% 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

Direct flights	None

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 07m.
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 3 as of September 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 A220-300, making up 66.67% of the total bookings. Other popular models include Airbus A319 with 33.33%.
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 (51% of total bookings). The next most popular airlines are United Airlines (34%) and Delta (16%).

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 7,957 reviews	Search Delta flights
United Airlines	PriceFrom $286	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
American Airlines	PriceFrom $286	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

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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.

An easier way to manage your Harrisburg trip

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Cheap flights from Seattle to Harrisburg from $154

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 10/14. 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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Filter for what you want

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Find the cheapest flights from Seattle to Harrisburg

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American Airlines flights from Seattle to Harrisburg

Our best American Airlines deals on Seattle to Harrisburg flight tickets

Delta flights from Seattle to Harrisburg

Our best Delta deals on Seattle to Harrisburg flight tickets

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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 September 2025, prices for Seattle to Harrisburg flights are approximately 25% 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, United Airlines, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Harrisburg

What airlines fly to Harrisburg?

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

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