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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.
United Airlines Logo
8:10 am - 6:59 pm
SEA
-
MDT
7h 49m1 stop
United Airlines Logo
6:30 am - 11:32 am
MDT
-
SEA
8h 02m1 stop
$259United Airlines
Thu, Jan 8 - Thu, Jan 15
United Airlines Logo
7:30 pm - 9:35 am
SEA
-
MDT
11h 05m2 stops
United Airlines Logo
6:30 am - 11:32 am
MDT
-
SEA
8h 02m1 stop
$264United Airlines
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
11:18 pm - 9:39 am
SEA
-
MDT
7h 21m1 stop
American Airlines Logo
3:16 pm - 10:18 pm
MDT
-
SEA
10h 02m1 stop
$278American Airlines
Fri, Feb 13 - Tue, Feb 17
American Airlines Logo
8:04 am - 8:14 pm
SEA
-
MDT
9h 10m2 stops
American Airlines Logo
3:03 pm - 10:20 pm
MDT
-
SEA
10h 17m2 stops
$329American Airlines
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
11:18 pm - 9:39 am
SEA
-
MDT
7h 21m1 stop
American Airlines Logo
12:52 pm - 9:21 pm
MDT
-
SEA
11h 29m2 stops
$343American Airlines
Fri, Feb 13 - Tue, Feb 17
United Airlines Logo
10:58 am - 9:05 pm
SEA
-
MDT
7h 07m1 stop
United Airlines Logo
2:28 pm - 8:57 pm
MDT
-
SEA
9h 29m1 stop
$359United Airlines
Sat, Jan 31 - Tue, Feb 3
United Airlines Logo
5:00 am - 9:05 pm
SEA
-
MDT
13h 05m2 stops
United Airlines Logo
6:30 am - 11:32 am
MDT
-
SEA
8h 02m1 stop
$364United Airlines
Sat, Jan 31 - Tue, Feb 3
United Airlines Logo
5:10 pm - 9:35 am
SEA
-
MDT
13h 25m2 stops
United Airlines Logo
3:10 pm - 12:59 am
MDT
-
SEA
12h 49m2 stops
$369United Airlines
Sat, Jan 31 - Tue, Feb 3
American Airlines Logo
7:00 am - 6:04 pm
SEA
-
MDT
8h 04m1 stop
American Airlines Logo
5:00 am - 11:51 am
MDT
-
SEA
9h 51m1 stop
$379American Airlines
Thu, Apr 9 - Tue, Apr 14
United Airlines Logo
11:59 pm - 9:56 am
SEA
-
MDT
6h 57m1 stop
United Airlines Logo
10:44 am - 9:12 pm
MDT
-
SEA
13h 28m2 stops
$429United Airlines
Thu, Apr 9 - Tue, Apr 14

Delta flights from Seattle to Harrisburg

Our best Delta deals on Seattle to Harrisburg flight tickets
Delta
Apr 16
SEA1:30 pmSeattle/Tacoma Intl
6h 14m
1 stop
MDT10:44 pmHarrisburg
Apr 20
MDT6:25 pmHarrisburg
8h 41m
1 stop
SEA12:06 amSeattle/Tacoma Intl
$499
Find similar
Delta
Dec 13
SEA11:00 pmSeattle/Tacoma Intl
8h 48m
1 stop
MDT10:48 amHarrisburg
Dec 16
MDT6:00 amHarrisburg
7h 40m
1 stop
SEA10:40 amSeattle/Tacoma Intl
$529
Find similar
Delta
Dec 12
SEA6:00 amSeattle/Tacoma Intl
7h 13m
1 stop
MDT4:13 pmHarrisburg
Dec 14
MDT6:00 amHarrisburg
7h 40m
1 stop
SEA10:40 amSeattle/Tacoma Intl
$569
Find similar

Alaska Airlines flights from Seattle to Harrisburg

Our best Alaska Airlines deals on Seattle to Harrisburg flight tickets
Alaska Airlines
Dec 29
SEA12:25 amSeattle/Tacoma Intl
7h 52m
1 stop
MDT11:17 amHarrisburg
Jan 3
MDT5:09 amHarrisburg
8h 38m
1 stop
SEA10:47 amSeattle/Tacoma Intl
$759
Find similar
Alaska Airlines
Dec 29
SEA12:25 amSeattle/Tacoma Intl
7h 52m
1 stop
MDT11:17 amHarrisburg
Jan 2
MDT11:47 amHarrisburg
15h 54m
2 stops
SEA12:41 amSeattle/Tacoma Intl
$764
Find similar
Alaska Airlines
Dec 17
SEA10:43 amSeattle/Tacoma Intl
8h 15m
1 stop
MDT9:58 pmHarrisburg
Jan 3
MDT5:09 amHarrisburg
8h 38m
1 stop
SEA10:47 amSeattle/Tacoma Intl
$814
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 11, 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

Thu 1/8

8:10 am-6:59 pm

1 stop7h 49m

Harrisburg

Thu 1/15

6:30 am-11:32 am

1 stop8h 02m

$259

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Thu 1/8

7:30 pm-9:35 am

2 stops11h 05m

Harrisburg

Thu 1/15

6:30 am-11:32 am

1 stop8h 02m

$264

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Fri 2/13

11:18 pm-9:39 am

1 stop7h 21m

Harrisburg

Tue 2/17

3:16 pm-10:18 pm

1 stop10h 02m

$278

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Thu 1/8

8:04 am-8:14 pm

2 stops9h 10m

Harrisburg

Thu 1/15

3:03 pm-10:20 pm

2 stops10h 17m

$329

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Fri 2/13

11:18 pm-9:39 am

1 stop7h 21m

Harrisburg

Tue 2/17

12:52 pm-9:21 pm

2 stops11h 29m

$343

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sat 1/31

10:58 am-9:05 pm

1 stop7h 07m

Harrisburg

Tue 2/3

2:28 pm-8:57 pm

1 stop9h 29m

$359

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sat 1/31

5:00 am-9:05 pm

2 stops13h 05m

Harrisburg

Tue 2/3

6:30 am-11:32 am

1 stop8h 02m

$364

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Sat 1/31

5:10 pm-9:35 am

2 stops13h 25m

Harrisburg

Tue 2/3

3:10 pm-12:59 am

2 stops12h 49m

$369

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Thu 4/9

7:00 am-6:04 pm

1 stop8h 04m

Harrisburg

Tue 4/14

5:00 am-11:51 am

1 stop9h 51m

$379

SeattleHarrisburg

SEA - MDT

SEAMDT

Seattle/Tacoma Intl

Thu 4/9

11:59 pm-9:56 am

1 stop6h 57m

Harrisburg

Tue 4/14

10:44 am-9:12 pm

2 stops13h 28m

$429

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 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.

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 $480 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 118% 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

6h 14m

Direct flights

None
The fastest flight from Seattle to Harrisburg takes 6h 14m
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 14m.

  • 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
8,008 reviews
Search Delta flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
American AirlinesPriceFrom $286Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $412Free CancellationRating
8.0
11,431 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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