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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.
1 adult
0 bags

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Find the cheapest flights from Seattle to Harrisburg

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:00 am - 5:48 pm
SEA
-
MDT
7h 48m1 stop
American Airlines Logo
3:03 pm - 10:07 pm
MDT
-
SEA
10h 04m1 stop
$259American Airlines
Wed, Jan 14 - Mon, Jan 19
United Airlines Logo
7:12 pm - 9:36 am
SEA
-
MDT
11h 24m2 stops
United Airlines Logo
2:28 pm - 8:57 pm
MDT
-
SEA
9h 29m1 stop
$264United Airlines
Wed, Dec 31 - Wed, Jan 7
United Airlines Logo
7:12 pm - 9:36 am
SEA
-
MDT
11h 24m2 stops
United Airlines Logo
10:34 am - 6:14 pm
MDT
-
SEA
10h 40m2 stops
$269United Airlines
Wed, Dec 31 - Wed, Jan 7
American Airlines Logo
12:14 am - 11:17 am
SEA
-
MDT
8h 03m1 stop
American Airlines Logo
3:03 pm - 10:07 pm
MDT
-
SEA
10h 04m1 stop
$319American Airlines
Tue, Dec 30 - Wed, Jan 7
Delta Logo
1:30 pm - 11:00 pm
SEA
-
MDT
6h 30m1 stop
Delta Logo
6:02 pm - 8:55 am
MDT
-
SEA
17h 53m2 stops
$358Delta
Sat, Feb 7 - Wed, Feb 11
United Airlines Logo
8:10 am - 6:59 pm
SEA
-
MDT
7h 49m1 stop
United Airlines Logo
2:28 pm - 8:57 pm
MDT
-
SEA
9h 29m1 stop
$359United Airlines
Sat, Feb 7 - Wed, Feb 11
United Airlines Logo
5:10 pm - 9:35 am
SEA
-
MDT
13h 25m2 stops
United Airlines Logo
6:30 am - 11:32 am
MDT
-
SEA
8h 02m1 stop
$364United Airlines
Sat, Feb 7 - Wed, Feb 11
United Airlines Logo
5:10 pm - 9:35 am
SEA
-
MDT
13h 25m2 stops
United Airlines Logo
6:15 am - 4:01 pm
MDT
-
SEA
12h 46m2 stops
$369United Airlines
Sat, Feb 7 - Wed, Feb 11
American Airlines Logo
11:20 am - 11:59 pm
SEA
-
MDT
9h 39m1 stop
American Airlines Logo
12:53 pm - 8:45 pm
MDT
-
SEA
10h 52m1 stop
$428American Airlines
Sun, Dec 28 - Sat, Jan 10
American Airlines Logo
12:14 am - 11:17 am
SEA
-
MDT
8h 03m1 stop
American Airlines Logo
10:42 am - 8:45 pm
MDT
-
SEA
13h 03m2 stops
$433American Airlines
Sat, Dec 27 - Sat, Jan 10

Delta flights from Seattle to Harrisburg

Our best Delta deals on Seattle to Harrisburg flight tickets
Delta
Feb 7
SEA1:30 pmSeattle/Tacoma Intl
6h 30m
1 stop
MDT11:00 pmHarrisburg
Feb 11
MDT6:02 pmHarrisburg
17h 53m
2 stops
SEA8:55 amSeattle/Tacoma Intl
$358
Find similar
Delta
Dec 11
SEA6:00 amSeattle/Tacoma Intl
7h 13m
1 stop
MDT4:13 pmHarrisburg
Dec 13
MDT6:00 amHarrisburg
7h 40m
1 stop
SEA10:40 amSeattle/Tacoma Intl
$523
Find similar
Delta
May 7
SEA7:20 amSeattle/Tacoma Intl
12h 24m
2 stops
MDT10:44 pmHarrisburg
May 11
MDT12:25 pmHarrisburg
11h 21m
2 stops
SEA8:46 pmSeattle/Tacoma Intl
$1,479
Find similar

United Airlines flights from Seattle to Harrisburg

Our best United Airlines deals on Seattle to Harrisburg flight tickets
United Airlines
Dec 31
SEA7:12 pmSeattle/Tacoma Intl
11h 24m
2 stops
MDT9:36 amHarrisburg
Jan 7
MDT2:28 pmHarrisburg
9h 29m
1 stop
SEA8:57 pmSeattle/Tacoma Intl
$264
Find similar
United Airlines
Dec 31
SEA7:12 pmSeattle/Tacoma Intl
11h 24m
2 stops
MDT9:36 amHarrisburg
Jan 7
MDT10:34 amHarrisburg
10h 40m
2 stops
SEA6:14 pmSeattle/Tacoma Intl
$269
Find similar
United Airlines
Feb 7
SEA10:58 amSeattle/Tacoma Intl
7h 07m
1 stop
MDT9:05 pmHarrisburg
Feb 11
MDT2:28 pmHarrisburg
9h 29m
1 stop
SEA8:57 pmSeattle/Tacoma Intl
$359
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Harrisburg 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 December 4, 2025.
Use the filters below to find and compare flights from Seattle to Harrisburg that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Wed 1/14

7:00 am-5:48 pm

1 stop7h 48m

Harrisburg

Mon 1/19

3:03 pm-10:07 pm

1 stop10h 04m

$259

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Wed 12/31

7:12 pm-9:36 am

2 stops11h 24m

Harrisburg

Wed 1/7

2:28 pm-8:57 pm

1 stop9h 29m

$264

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Wed 12/31

7:12 pm-9:36 am

2 stops11h 24m

Harrisburg

Wed 1/7

10:34 am-6:14 pm

2 stops10h 40m

$269

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Tue 12/30

12:14 am-11:17 am

1 stop8h 03m

Harrisburg

Wed 1/7

3:03 pm-10:07 pm

1 stop10h 04m

$319

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sat 2/7

1:30 pm-11:00 pm

1 stop6h 30m

Harrisburg

Wed 2/11

6:02 pm-8:55 am

2 stops17h 53m

$358

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sat 2/7

8:10 am-6:59 pm

1 stop7h 49m

Harrisburg

Wed 2/11

2:28 pm-8:57 pm

1 stop9h 29m

$359

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sat 2/7

5:10 pm-9:35 am

2 stops13h 25m

Harrisburg

Wed 2/11

6:30 am-11:32 am

1 stop8h 02m

$364

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sat 2/7

5:10 pm-9:35 am

2 stops13h 25m

Harrisburg

Wed 2/11

6:15 am-4:01 pm

2 stops12h 46m

$369

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sun 12/28

11:20 am-11:59 pm

1 stop9h 39m

Harrisburg

Sat 1/10

12:53 pm-8:45 pm

1 stop10h 52m

$428

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sat 12/27

12:14 am-11:17 am

1 stop8h 03m

Harrisburg

Sat 1/10

10:42 am-8:45 pm

2 stops13h 03m

$433

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 Harrisburg from

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?

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 December 2025, prices for Seattle to Harrisburg flights are approximately 58% 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 07m

Direct flights

None
The fastest flight from Seattle to Harrisburg takes 7h 07m
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 30m.

  • 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $226Free CancellationRating
7.9
8,011 reviews
Search Delta flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,066 reviews
Search United Airlines flights
American AirlinesPriceFrom $286Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $412Free CancellationRating
8.0
11,402 reviews
Search Alaska Airlines flights

Traveling to a place near Harrisburg?

Book flights to Harrisburg if you plan to visit one of these locations
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.

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