SEA - MDT

$150 Find Cheap Flights from Seattle to Harrisburg

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 4/15. 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
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$299
Overall average: $386
American Airlines
Fri 5/1Tue 5/5
SEA - MDT • 1 stop
Cheapest one-way
$150
Typical prices: $143-$348
American Airlines
Wed 4/15
SEA - MDT • 1 stop
Top airlines
Cheapest • from $299 (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 $416 (round-trip)
Shortest trip • 7h 16m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% 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

Fri, May 1 - Tue, May 5
American Airlines Logo
11:33 pm - 11:23 am
SEA
-
MDT
8h 50m
1 stop
American Airlines Logo
6:43 pm - 12:36 am
MDT
-
SEA
8h 53m
1 stop
$299American Airlines
Thu, Apr 16 - Fri, Apr 17
United Airlines Logo
10:35 pm - 10:09 am
SEA
-
MDT
8h 34m
1 stop
United Airlines Logo
5:53 pm - 12:34 am
MDT
-
SEA
9h 41m
1 stop
$319United Airlines
Tue, Apr 21 - Sat, Apr 25
United Airlines Logo
2:39 pm - 12:42 am
SEA
-
MDT
7h 03m
1 stop
United Airlines Logo
2:41 pm - 11:59 pm
MDT
-
SEA
12h 18m
2 stops
$324United Airlines
Tue, Apr 7 - Wed, Apr 8
United Airlines Logo
7:37 pm - 10:09 am
SEA
-
MDT
11h 32m
2 stops
United Airlines Logo
5:52 pm - 10:42 pm
MDT
-
SEA
7h 50m
1 stop
$358United Airlines
Tue, Apr 7 - Wed, Apr 8
United Airlines Logo
11:59 pm - 10:09 am
SEA
-
MDT
7h 10m
1 stop
United Airlines Logo
5:52 pm - 10:42 pm
MDT
-
SEA
7h 50m
1 stop
$359United Airlines
Mon, Mar 30 - Fri, Apr 3
American Airlines Logo
10:57 pm - 11:32 am
SEA
-
MDT
9h 35m
1 stop
American Airlines Logo
3:15 pm - 9:57 pm
MDT
-
SEA
9h 42m
1 stop
$379American Airlines
Fri, May 29 - Sat, May 30
United Airlines Logo
10:40 pm - 9:36 am
SEA
-
MDT
7h 56m
1 stop
United Airlines Logo
5:50 pm - 10:39 pm
MDT
-
SEA
7h 49m
1 stop
$387United Airlines
Thu, Apr 16 - Sat, Apr 18
American Airlines Logo
11:33 pm - 11:23 am
SEA
-
MDT
8h 50m
1 stop
American Airlines Logo
5:38 am - 10:14 am
MDT
-
SEA
7h 36m
1 stop
$389American Airlines
Sun, Apr 12 - Tue, Apr 14
American Airlines Logo
10:47 pm - 9:32 am
SEA
-
MDT
7h 45m
1 stop
American Airlines Logo
5:38 am - 12:29 pm
MDT
-
SEA
9h 51m
1 stop
$399American Airlines
Mon, Mar 30 - Fri, Apr 3
United Airlines Logo
11:59 pm - 1:55 pm
SEA
-
MDT
10h 56m
2 stops
United Airlines Logo
2:41 pm - 8:53 pm
MDT
-
SEA
9h 12m
1 stop
$404United 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.

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 March and December, where the average cost of round-trip tickets is $712 and $596 respectively.

Good to know

Low seasonFebruary
Cheapest flight$150
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 19% 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 3 days, the lowest price for a flight from Seattle to Harrisburg was $150 for a one-way ticket and $299 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?

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Harrisburg are Delta and Alaska Airlines. With an average price for the route of $401 and an overall rating of 7.9, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $638 and an overall rating of 7.9.

  • 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 4 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 12062 reviews
7.0Food
8.5Crew
7.0Entertainment
7.8Comfort
8.1Boarding
Airline reviews

Departing flight for our weekend trip was cancelled due to weather which meant our return flight was useless. The whole thing was difficult to get support through but Alaska did recover and was able to reimburse us for the flights yesterday. For some reason, Kayak was not kept in the loop, adding to the confusion.

2.0 MediocreDavid, Mar 2026
SEA - STS
Read more Alaska Airlines reviews

Departing flight for our weekend trip was cancelled due to weather which meant our return flight was useless. The whole thing was difficult to get support through but Alaska did recover and was able to reimburse us for the flights yesterday. For some reason, Kayak was not kept in the loop, adding to the confusion.

i canceled my return flight package with Alaska Airlines. Customer Service was excellent and assisted me to cancelled both of our reservations and returned the payment in full. that is excellent service and understanding and empathy of the customers' needs. i like Alaska Airlines and recommend AS to everyone.

Never got on because the airline sent the WRONG plane to take us on our first leg of the trip so we missed ALL connecting flights. No help available from anyone at the airline…

The crew inside the airport for Alaska was rude, lazy and incompetent

The flight was extremely smooth, and so was the landing. Great piloting.

Plane was clean, staff was professional and flight was on time. No built in tv was still ok, as programs were offered that could synch to smart phones.

J was in the ER x 3...3 protruding discs...contacted Alaska many many days prior to cancel and request a refund or a credjt.. they only gave me 50 % credit....outrageous seeing how i have a doctors letter....just plain inhuman. AI sucks!

The flight was too short. No snacks or drinks offered.

The flight attendant was friendly and attentive. Although our interaction was brief—- it made a difference. The crew was upfront about turbulence. I like the Maui pretzels.

Everything was good. Please have a wheat free option for snacks in the future.

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

Delayed. Hot. Passenger next to me was so large I couldn’t move.

2+hrs delay without any reason provided and a cramped flight

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

I very rarely fly American and my experience today reenforces that is the correct decision. While the staff were all very courteous, our flight was first thing in the morning so there was no reason to be delayed, yet appropriate maintenance checks weren’t completed prior to our flight so we were delayed multiple times. Not a great showing, American Airlines.

Boarding is always an ordeal. Less dogs on flights. I am highly allergic to dogs and cats. Why are there so many animals these days?

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The seat cushions were very worn so they were extremely uncomfortable.

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

Information on your arrival and departure airports