$195 Find Cheap Flights from Seattle to Heidelberg - 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 Heidelberg departing on 10/17. 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.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$633
Typical prices: $699-$925
Icelandair
Wed 8/5Wed 8/19
SEA - FRA • 1 stop
Cheapest non-stop
$639
Typical prices: $640-$780
Condor
Tue 10/6Tue 10/20
SEA - FRA • Non-stop
Arrival airport
You can't fly directly to Heidelberg. It is served by Frankfurt am Main (FRA), located 44.6 miles from Heidelberg.
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Flight Deals
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Flight Deals

Cheap Flights from Seattle to Heidelberg (SEA-FRA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Heidelberg 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 Heidelberg

Wed, Aug 5 - Wed, Aug 19
Icelandair Logo
3:40 pm - 1:00 pm
SEA
-
FRA
12h 20m
1 stop
Icelandair Logo
7:25 am - 11:45 am
FRA
-
SEA
13h 20m
1 stop
$633Icelandair
Fri, Oct 23 - Fri, Nov 6
Multiple Airlines Logo
3:40 pm - 1:00 pm
SEA
-
FRA
12h 20m
1 stop
Multiple Airlines Logo
10:15 am - 8:03 pm
FRA
-
SEA
18h 48m
1 stop
$634Multiple Airlines
Thu, Oct 22 - Thu, Nov 5
Multiple Airlines Logo
7:00 pm - 1:00 pm
SEA
-
FRA
33h 00m
1 stop
Multiple Airlines Logo
10:15 am - 8:03 pm
FRA
-
SEA
18h 48m
1 stop
$636Multiple Airlines
Thu, Aug 6 - Wed, Aug 19
Icelandair Logo
11:25 pm - 6:25 am
SEA
-
FRA
22h 00m
1 stop
Icelandair Logo
7:25 am - 11:45 am
FRA
-
SEA
13h 20m
1 stop
$637Icelandair
Tue, Oct 6 - Tue, Oct 20
Condor Logo
6:05 pm - 1:10 pm
SEA
-
FRA
10h 05mnonstop
Condor Logo
2:15 pm - 3:40 pm
FRA
-
SEA
10h 25mnonstop
$639Condor
Wed, Oct 21 - Mon, Oct 26
Condor Logo
5:40 pm - 12:45 pm
SEA
-
FRA
10h 05mnonstop
Condor Logo
2:15 pm - 4:55 pm
FRA
-
SEA
10h 40mnonstop
$641Condor
Sun, Oct 4 - Wed, Oct 21
Condor Logo
5:40 pm - 12:45 pm
SEA
-
FRA
10h 05mnonstop
Condor Logo
2:15 pm - 3:40 pm
FRA
-
SEA
10h 25mnonstop
$644Condor
Mon, Oct 5 - Mon, Oct 26
Condor Logo
6:10 pm - 1:10 pm
SEA
-
FRA
10h 00mnonstop
Condor Logo
2:15 pm - 4:55 pm
FRA
-
SEA
10h 40mnonstop
$645Condor
Tue, Oct 6 - Tue, Oct 20
Multiple Airlines Logo
11:54 am - 12:40 pm
SEA
-
FRA
15h 46m
1 stop
Multiple Airlines Logo
2:15 pm - 3:40 pm
FRA
-
SEA
10h 25mnonstop
$648Multiple Airlines
Mon, Aug 17 - Wed, Sep 2
Condor Logo
6:10 pm - 1:10 pm
SEA
-
FRA
10h 00mnonstop
Condor Logo
2:15 pm - 3:40 pm
FRA
-
SEA
10h 25mnonstop
$650Condor
Useful Info

Good to know

Low season

January

Cheapest flight

$195
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Seattle to Frankfurt Airport

When to book flights from Seattle to Heidelberg

Are your dates flexible? Find out the best times to travel from Seattle to Heidelberg based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Seattle to Heidelberg: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Seattle to Heidelberg 
GabrielFlew with Condor
SEA
-
FRA
Jun 2026
Bring your own food, show up a couple hours early and be prepared.
Verified travelerFlew with Lufthansa
SEA
-
FRA
Apr 2024
If you don't have checked luggage, no need to be in a rush to line up. There will be a spot for your little carry-on rollie bag, so relax until the line is down to board the plane.

FAQs for booking flights from Seattle to Heidelberg

  • Which airports will I be using when flying from Seattle to Heidelberg?

    When flying out of Seattle you’ll be using Seattle/Tacoma Intl. Heidelberg does not have its own airport so you’ll be flying into nearby Frankfurt am Main airport, which is 44.6 mi away.

  • How long does a flight from Seattle to Heidelberg take?

    Direct flights cover the 5,089 miles separating Seattle and Heidelberg in about 9h 45m.

  • How many flights are there between Seattle and Heidelberg?

    5 direct flights run between Seattle and Heidelberg on a daily basis. On average, there are about 37 departures each week.

  • What’s the cheapest day of the week to fly between Seattle and Heidelberg?

    Consider leaving on a Sunday and avoid Thursdays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

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

    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 Heidelberg.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Heidelberg 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 Heidelberg?

    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 Heidelberg with an airline and back to Seattle with another airline.

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

    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 Heidelberg from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Seattle to Heidelberg?

    In the last 5 days, the cheapest one-way ticket between Seattle and Heidelberg found on KAYAK was with Icelandair for $213. Icelandair offered a round-trip connection from $482 and Condor from $575.

Top tips for finding cheap flights from Seattle to Heidelberg

  • There is no airport in Heidelberg. Instead, you’ll be flying into Frankfurt Airport when flying between Seattle and Heidelberg.
  • The cheapest flight from Seattle to Heidelberg was found 79 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is January.

Reviews of the top 5 airlines serving Seattle to Heidelberg

 
Need help choosing which airline to fly with from Seattle to Heidelberg? 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 12713 reviews
8.5Crew
7.8Comfort
8.1Boarding
7.0Entertainment
7.0Food
Airline reviews

Delayed due aircraft maintenance. The plane was so small, hardly to get to the toilet when they’re serving food/drinks. But the ground crews were so helpful and trying their best to update all situation. The flight attendants not as friendly but fine.

8.0 ExcellentMaria, Jul 2026
SEA - MSP
Read more Alaska Airlines reviews

Delayed due aircraft maintenance. The plane was so small, hardly to get to the toilet when they’re serving food/drinks. But the ground crews were so helpful and trying their best to update all situation. The flight attendants not as friendly but fine.

same as the first when you pay for choice of seats than you don't receive them its very frustrating it was an extra fee of $80 dollars Craig Molan

The flight got delayed for some unknown reason to us. Then, after boarding, we stayed grounded for almost an hour without any explanation or announcement. Then, finally lifted off. When we landed and made our way to baggage claim. The luggage took 30 minutes to come! It was past midnight due to the flight being delayed and my litter children were cranky and tired! It was not a great experience. Perhaps, more explanation of what is going on with the flight would be helpful!

Flight was delayed hour and a half. Gate was changed 3 times. After boarding, sat in airplane for another hour while mechanic checked windshield. Total of 2 1/2 hrs behind schedule. Very tiring since I had ben up since 4 am to complete the flight from Honolulu to Milwaukee.

Good flight, loved the snacks (Biscoff cookies). For boarding, they forgot to change the sign showing our group was boarding. Apparently, they had announced it, but the announcements overlapped with another gate announcements and no one could actually hear what they were saying. So a group of us were waiting....and finally asked and were told we could board.

I had the row all to myself, which was fantastic! The food was pretty weak, though, which is an annoying thing about current travel. I didn't check out the entertainment, so can't rate that.

overall no call for accessible while boarding. The crew member was little rude not bothering about the condition. Seat assigned was very uncomfortable.

Alaska Airlines demonstrated their insensitivity and lack of compassion when I asked for an emergency rescheduling/cancellation due to a dire family emergency. My father was in the Hospital ICU with a terminal prognosis with no other family in the state to help manage the situation and I called AA to ask whether something could be done about moving my flight to a later date, but the AA agent on the phone was firm in not offering any alternative other than to tell me I had to eat the entire cost of the flight. I did not appreciate having to manage that loss on top of juggling time-sensitive matters with my family as my father and I dealt with his life-threatening emergency. I'm very disappointed in the airline for not even attempting to provide assistance other than to quickly shut me down completely. I was really shocked with their treatment of the matter and unlikely to use their airline again.

All went well from checking in Seattle till landing in New Orleans. The whole crew work well . The customer service is amazing . They are knowledgeable friendly and serviceable.

Alaska, in my opinion, is one of the best airlines. I have flown them for 30+ years and watched them grow from a small NW carrier to the size they are today. Day-in, day-out they are very good.

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

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.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

A lot of room for improvement; delayed boarding and take off, room in a seat…horrible. I was seated by a larger person and had no room to rest my elbows, not to mention her body was partially sitting on my seat. The food was quite poor this time as well. Bathrooms half way down the flight- disgusting….

I DO NOT recommend Iceland air...missed connecting flight.....paid for isle seat upgrade for health reasons...had to do that over....baggage left in the rain so clothes got soaked other items ruined....called customer * dont care* service

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

7 hours 15 min flight from SEA to Iceland with no inflight entertainment and no power to charge your own devices, also no meal service, not even any snacks/cookies. You have to buy food and the options are extremely limited (i.e. ham and cheese sandwich and spicy cup noodles). I didn't think Iceland air was a budget airline, maybe I was wrong, the cost of the ticket didn't feel like it though.

Very nice flight, easy connections in Keflavík, and friendly crew.

The flight was cancelled, so why are you asking me how the flight was?

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Biggest gripes were that the seats were extra narrow as the 4-in-the-middle taper down. As with most flight, too little leg room hurts my aging hips. Also changing the flight time to 3 hours earlier meant that we had a terribly long lay-over in one of the world's most boring airports

German crew were very kind. Food was okay but can be better, especially bread was not good, Garbage collection was very poor.

Great! Great staff, great food, great flight :) Keep up the good work!!!

It was good. Nice entertainment selection to keep me busy for the timeframe I wasn't sleeping. Professional, courteous and attentive crew.

They lost my bags and I didn't get them for 4 days after. This also happened to about 30 other people on my flight from fra to MAA (I know bc we were all filing claims in line together from the same flight.)

Flight took off arrive Frankfurt fine ... and then the Pilot parked the plane for 20 minutes while waiting for a steps vehicle to arrive so we all could deplane. This caused us to miss our Naples flight by 6 minutes while running to the next gate.. We are aware of 3 others who also miss their flight. Lufthansa Support said "why miss your flight, your flight arrived on time?" We explained, they provided another flight many hrs later, no meal voucher because our "flight was ontime".

They help we received from the check in crew and boarding cr

Both flights were on time. Great selection of movies on board. My luggage didn't get lost, which made my trip very easy.

Could have a friendlier crew. The entertainment should be updated to be more current

One of the bathrooms was out of order, I paid $20 for the WiFi and it worked 20% of the time. And when it worked., it didn’t work well. The seats were tight, but that is something that cannot change. The flight was smooth but to know fault of the crew, the flight was delayed an hour leaving sfo. The crew was polite yet efficient.

Loved the staff in business class. Very attentive. Movie selection could have been better (updated)

The attendants were nice, but I was freezing the entire nine hours and so cramped. Please provide more blankets or make it known how to borrow a blanket for such a long flight. Even in already expensive economy class, people really need a bit more leg room and two more inches between seats to comfortably fly for 9 hours. Our family works very hard, but the extra expense of economy plus is just not in a lot of customer's budgets, and we still want to fly in equal peace and comfort. Please create future aircrafts that reveal reasonable care for us, the cramped- to- death customers more than the question of "how can we jam a few more human beings into this already cramped flight to impress our higher ups making a few more dollars. It's just Wrong. People need a reasonable amount of leg room and a blanket when the airline attendant said the extreme air conditioning could not be turned off. The food was tasty, but a bit more protein and less fluff would be appreciated. Thank you.

It was very good! Crew was very friendly, food was very good. I was on economy so the comfort was ok. Other than that, I would fly Condor again!

Breakfast was terrible. Sugary yogurt, inferior pastry, poor quality fruits. No protein.

Really, nothing. I flew economy, and received a very good economy experience.

Flight attendants were polite but not attentive. They did not clean cabin throughout trip, and the airplane upon disembarking looked disastrous! Garbage everywhere ! The state of the cabin did NOT leave passenger with a ‘cared-for’ feeling. It looked a total mess. They also closed themselves off in the back of the plane and passengers felt like they needed to knock to get a glass of water. Very dissppointing.

The seats are too close to the ones in front.

Not a valued customer..just a herd of cattles that is being shuffled around. Employees just lie into your face. Last time I flew with LH companies. No customer service at all. The customer is their enemy.

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

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