SEA - MDT

$243 Find Cheap Flights from Seattle to Harrisburg - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Harrisburg departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Harrisburg

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Harrisburg, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Harrisburg, as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$307
Typical prices: $918-$453
American Airlines
Tue 7/14Wed 7/22
SEA - MDT • 1 stop
Cheapest one-way
$243
Typical prices: $169-$429
Multiple Airlines
Wed 7/15
SEA - MDT • 3 stops
Top airlines
Cheapest • from $307 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Harrisburg. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $476 (round-trip)
Shortest trip • 7h 04m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Harrisburg!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Harrisburg (SEA-MDT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Harrisburg that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Harrisburg

Tue, Jul 14 - Wed, Jul 22
American Airlines Logo
6:00 am - 4:20 pm
SEA
-
MDT
7h 20m
1 stop
American Airlines Logo
5:00 pm - 12:52 am
MDT
-
SEA
10h 52m
1 stop
$307American Airlines
Fri, Sep 25 - Tue, Sep 29
United Airlines Logo
11:13 pm - 9:51 am
SEA
-
MDT
7h 38m
1 stop
United Airlines Logo
2:55 pm - 10:56 pm
MDT
-
SEA
11h 01m
2 stops
$312United Airlines
Wed, Jul 8 - Sat, Jul 25
American Airlines Logo
6:00 am - 7:05 pm
SEA
-
MDT
10h 05m
1 stop
American Airlines Logo
7:15 pm - 12:52 am
MDT
-
SEA
8h 37m
1 stop
$329American Airlines
Mon, Jul 13 - Mon, Jul 20
American Airlines Logo
11:56 pm - 11:11 am
SEA
-
MDT
8h 15m
1 stop
American Airlines Logo
7:45 pm - 12:59 am
MDT
-
SEA
8h 14m
1 stop
$352American Airlines
Wed, Jul 1 - Tue, Jul 7
American Airlines Logo
6:00 am - 6:28 pm
SEA
-
MDT
9h 28m
1 stop
American Airlines Logo
7:45 pm - 12:52 am
MDT
-
SEA
8h 07m
1 stop
$399American Airlines
Wed, Jul 8 - Sun, Jul 12
American Airlines Logo
6:00 am - 7:05 pm
SEA
-
MDT
10h 05m
1 stop
American Airlines Logo
7:45 pm - 12:52 am
MDT
-
SEA
8h 07m
1 stop
$413American Airlines
Sat, Aug 15 - Tue, Sep 1
United Airlines Logo
7:00 am - 4:52 pm
SEA
-
MDT
6h 52m
1 stop
United Airlines Logo
5:54 pm - 10:43 pm
MDT
-
SEA
7h 49m
1 stop
$415United Airlines
Wed, Sep 2 - Sat, Sep 5
United Airlines Logo
11:00 pm - 9:51 am
SEA
-
MDT
7h 51m
1 stop
United Airlines Logo
5:54 pm - 10:43 pm
MDT
-
SEA
7h 49m
1 stop
$417United Airlines
Wed, Sep 2 - Sat, Sep 5
United Airlines Logo
6:15 pm - 9:37 am
SEA
-
MDT
12h 22m
2 stops
United Airlines Logo
5:54 pm - 10:43 pm
MDT
-
SEA
7h 49m
1 stop
$422United Airlines
Fri, Sep 25 - Tue, Sep 29
United Airlines Logo
11:13 pm - 2:04 pm
SEA
-
MDT
11h 51m
2 stops
United Airlines Logo
2:55 pm - 10:56 pm
MDT
-
SEA
11h 01m
2 stops
$428United Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Harrisburg flights

Get data-powered insights and trends into flights from Seattle to Harrisburg to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Harrisburg?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Harrisburg departing in July.

What is the cheapest month to fly from Seattle to Harrisburg?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Harrisburg, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Harrisburg is November, where tickets cost $367 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $658 and $633 respectively.

Good to know

Low seasonFebruary
Cheapest flight$243
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Seattle to Harrisburg

When to book flights from Seattle to Harrisburg

Are your dates flexible? Find out the best times to travel from Seattle to Harrisburg based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Harrisburg

  • What is the cheapest flight from Seattle to Harrisburg?

    In the last 5 days, the lowest price for a flight from Seattle to Harrisburg was $243 for a one-way ticket and $307 for a round-trip.

  • Do I need a passport to fly between Seattle and Harrisburg?

    No

  • Which aircraft models fly most regularly from Seattle to Harrisburg?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Harrisburg?

    Star Alliance, and oneworld are the airline alliances operating flights between Seattle and Harrisburg, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Harrisburg, Alaska Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Harrisburg are Alaska Airlines and United Airlines. With an average price for the route of $798 and an overall rating of 7.9, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $500 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle to Harrisburg?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Harrisburg.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Harrisburg?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harrisburg from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Harrisburg?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harrisburg with an airline and back to Seattle with another airline. Booking your flights between Seattle and MDT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Harrisburg?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harrisburg from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Seattle to Harrisburg

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Harrisburg. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Harrisburg? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12529 reviews
7.8Comfort
7.0Entertainment
7.1Food
8.5Crew
8.1Boarding
Airline reviews

Airport security lines in Seattle were awful. The only staff that was pleasant and made the trip more enjoyable was the young woman at the gate in Seattle. She was so pleasant and helpful. Flight attendant on the plane seemed like she would rather be anywhere but on that plane.

8.0 ExcellentAnonymous, Jun 2026
SEA - ICT
Read more Alaska Airlines reviews

Airport security lines in Seattle were awful. The only staff that was pleasant and made the trip more enjoyable was the young woman at the gate in Seattle. She was so pleasant and helpful. Flight attendant on the plane seemed like she would rather be anywhere but on that plane.

People were friendly. Flight was a little delayed. Maybe I missed the reason for it. Overall a nice experience.

Crews were friendly enough. To help the airline I checked my carry on baggage. Typical "gonna be a full flight we need 19 carry on bags to be checked to help out". So I helped out only to have to wait 30+ mins for my luggage and risked not getting to my car rental on time. The return flight was delayed. Kept hearing employees say something about "they didn't have any power" which is kind of concerning. The air flow and air conditioning was insufficient. It was warm and stuffy during the flight. Plus no free wi-fi......Booooooo!

Didn’t even get on, check my flight to Seattle for details. Do better Alaska.

A five hour nonstop flight traveling over a few time zones and over the dinner hour and you get a small bag of pretzels. And no screens to watch movies. I

The flight kept getting delayed due to a maintenance issue. That happens, but there is no excuse for changing the gate FIVE TIMES, including one time nearly all the way across SeaTac. After we were delayed for 3+ hours, they did send us (via email) a $12 meal voucher...except you can't find a $12 meal anywhere in that airport, unless you consider a bag of M&M's and a bottle of water a meal. The plane had one problem after another but finally took off 4.5 hours late. This caused us to miss our hotel shuttle at ORD (they didn't run past midnight and it was 3 am) so we had to wait 25 minutes and pay for an Uber. I did get a $50 flight voucher from Alaska...big deal. Barely covers my Uber ride that I shouldn't have needed.

I upgraded to a better seat and it was much more comfortable. Nobody serves food anymore and actually on a 2+ hr flight not necessary. I didn’t even get water.

Check in & bag drop was straightforward. Alaskair changed the gate approx 40 min before departure, and I only became aware due to Google wallet update to my boarding pass. Had to move from gate N1 to C9 which required use of the Train, luckily I had time available.

Super impressed by staff courtesy, and assistance, Flight was one of the best I've had despite turbulence... Will definitely be flying Alaskan air as my preferred choice

My boarding passes were pulled from my Apple wallet and my 3 family members who were all sitting together in the same row all got put middle seats and were one of the last to board and barely were able to get our bags in the luggage bins.

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

The seats. The seat in front of me was awful and when the guy sat down, it flew back and hit my head when I was putting my backpack under the seat, It didn't make for a pleasant experience,

Cancelled flight. Still waiting to get home for grand daughter’s graduation .

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

When I booked my flight a month ago - I selected a seat. That seat was NOT the one I ended up with when I checked into my flight the day before. This is the second time this has occurred. So, I checked my next flight on Wednesday and Thursday and no seat was assigned. Poor, very poor customer service.

Cleared standby and gave up my seat. Terrible policy and boarding experience

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

Bag drop was very disorganized in Miami. All main cabin passengers were shunted to just a few lanes and they had an equal number of lanes for first class passengers but there was nobody on those lines. They did nothing to bring the main cab and passengers over to the open lines and they just had employees standing there and doing nothing

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

Everything you need to know for your flight from Seattle to Harrisburg

Information on your arrival and departure airports