SEA - MDT

$149 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 6/10. 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
$261
Typical prices: $918-$415
American Airlines
Tue 7/7Tue 7/14
SEA - MDT • 1 stop
Cheapest one-way
$149
Typical prices: $171-$409
United Airlines
Wed 6/10
SEA - MDT • 1 stop
Top airlines
Cheapest • from $261 (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 $445 (round-trip)
Shortest trip • 7h 28m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% 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 7 - Tue, Jul 14
American Airlines Logo
6:00 am - 4:20 pm
SEA
-
MDT
7h 20m
1 stop
American Airlines Logo
7:45 pm - 12:52 am
MDT
-
SEA
8h 07m
1 stop
$261American Airlines
Tue, May 26 - Tue, Jun 2
American Airlines Logo
10:35 pm - 10:08 am
SEA
-
MDT
8h 33m
1 stop
American Airlines Logo
5:46 pm - 12:16 am
MDT
-
SEA
9h 30m
1 stop
$279American Airlines
Tue, Aug 18 - Tue, Sep 8
American Airlines Logo
11:59 pm - 12:42 pm
SEA
-
MDT
9h 43m
1 stop
American Airlines Logo
2:45 pm - 9:59 pm
MDT
-
SEA
10h 14m
1 stop
$306American Airlines
Tue, Aug 18 - Tue, Aug 25
United Airlines Logo
10:47 pm - 9:31 am
SEA
-
MDT
7h 44m
1 stop
United Airlines Logo
5:53 pm - 10:42 pm
MDT
-
SEA
7h 49m
1 stop
$344United Airlines
Wed, Aug 26 - Tue, Sep 1
American Airlines Logo
12:34 am - 11:16 am
SEA
-
MDT
7h 42m
1 stop
American Airlines Logo
2:45 pm - 9:59 pm
MDT
-
SEA
10h 14m
1 stop
$355American Airlines
Tue, May 26 - Sat, May 30
Alaska Airlines Logo
12:09 am - 11:07 am
SEA
-
MDT
7h 58m
1 stop
Alaska Airlines Logo
2:20 pm - 10:28 pm
MDT
-
SEA
11h 08m
1 stop
$371Alaska Airlines
Tue, May 19 - Mon, May 25
United Airlines Logo
1:07 pm - 11:28 pm
SEA
-
MDT
7h 21m
1 stop
United Airlines Logo
6:15 am - 11:51 am
MDT
-
SEA
8h 36m
1 stop
$373United Airlines
Wed, May 27 - Sat, May 30
Alaska Airlines Logo
7:26 am - 11:59 pm
SEA
-
MDT
13h 33m
2 stops
Alaska Airlines Logo
2:20 pm - 10:28 pm
MDT
-
SEA
11h 08m
1 stop
$376Alaska Airlines
Thu, Aug 27 - Tue, Sep 1
United Airlines Logo
7:00 am - 4:51 pm
SEA
-
MDT
6h 51m
1 stop
United Airlines Logo
2:53 pm - 11:11 pm
MDT
-
SEA
11h 18m
2 stops
$389United Airlines
Fri, May 29 - Tue, Jun 2
Alaska Airlines Logo
6:26 am - 11:59 pm
SEA
-
MDT
14h 33m
2 stops
Alaska Airlines Logo
11:39 am - 9:30 pm
MDT
-
SEA
12h 51m
2 stops
$399Alaska 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 May, where the average cost of round-trip tickets is $596 and $556 respectively.

Good to know

Low seasonFebruary
Cheapest flight$149
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 15% 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 $149 for a one-way ticket and $261 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 $419 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 12313 reviews
7.0Entertainment
7.8Comfort
8.5Crew
7.1Food
8.1Boarding
Airline reviews

The crew was great and everything went smoothly coming and going.

10.0 ExcellentHayes, Apr 2026
SEA - IDA
Read more Alaska Airlines reviews

The crew was great and everything went smoothly coming and going.

My window seat did not have a window. I chose seat 11A thinking I would have a view. I had a wall instead.

See what I wrote in the previous section. This was a terrible experience. I would like refund.. I even paid an extra $70 for an aisle seat closer to the front to ensure that I got off early enough to catch the next flight. The fact that the plane did not wait, and even left eearlier, knowing that the first flight came in late, and was moved to a terminal three train stops away is appalling. My friend that flew JetBlue, their flight was delayed and came in later and the connecting flight WAITED for them. How is it that JetBlue could do that, and Alaska could not.

This was my second time flying Alaska Airline in the 1st Class cabin. Everything was fine with the exception of the food and entertainment. The food was just ok but not what I was expecting from 1st Class. A BBQ pork sandwich and baked potato. There wasnt any in-flight entertainment. I found that odd since it was a coast to coast flight Seattle to Dulles. My sister flew 1st Class on Delta on a shorter flight ( Seattle to Cincinnati) and had an awesome meal and in-flight entertainment. I typically fly Delta but there wasn’t a flight with times that fit my schedule. I am by no means a primary donna. But when my upgrade cost over $900…I didn’t use any reward miles…I was expecting more than what I got. I will never fly Alaska Airline 1st Class again. I will stick with Delta for all my travel needs whether it’s in 1st Class or coach.

Good staff. Comfortable seats. Had to check my bag because the flight was too full.

Loved this first class flight! Awesome food, snacks and drinks. Comfortable seat with foot rest. Good movie. Very friendly crew! Only thing I would suggest is having a screen on seat back in front of me so I didn’t have to watch the movie on my phone.

The crew was very attentive, boarding was orderly. I really liked the way Alaska Airlines gives boarding passes and dropping off my bags. Very smooth.

Once we were in the air, the flight was nice and smooth. The flight was about twenty minutes late to begin with, though, and then we needed to wait to land for another plane to land first.

Flight crew great! No WiFi not great. Someone took my bag not great!

Alaska Airlines staff go out of their way to accommodate my fragile musical instrument, every time. They are unlike any other airline. I've experienced this can-do attitude on several flights with different staff, so this must be the culture of their company. I appreciate Alaska!

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

The cabin temperature was nice and cool. The wifi was not working.

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.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

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.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

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.

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

Information on your arrival and departure airports