Book a free fast-track security slot via FRA SmartWay 72 hours before departure to save time at security checkpoints.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $559 (Flighttix) |
One-way from | $434 (lol.travel) |
Popular in | July |
Cheapest in | March |
Average price | $634 |
Good round-trip deal | $668 or less |
Good one-way deal | $594 or less |
Fly from
Fly to
Route
Depart
Return
Price
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Sun 2/15
10:15 am-12:55 am
1 stop23h 40m
Seattle/Tacoma Intl
Sun 2/22
6:50 pm-10:00 pm
1 stop18h 10m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Thu 4/30
10:55 am-7:32 pm
1 stop17h 37m
Seattle/Tacoma Intl
Tue 5/26
8:20 pm-10:40 pm
1 stop17h 20m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Fri 1/23
1:05 pm-5:00 pm
1 stop12h 55m
Seattle/Tacoma Intl
Tue 1/27
2:35 pm-12:05 pm
1 stop12h 30m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Wed 1/21
1:05 pm-5:00 pm
1 stop12h 55m
Seattle/Tacoma Intl
Wed 1/28
2:35 pm-12:05 pm
1 stop12h 30m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Thu 1/22
1:05 pm-5:00 pm
1 stop12h 55m
Seattle/Tacoma Intl
Tue 1/27
2:35 pm-12:05 pm
1 stop12h 30m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Thu 1/22
1:05 pm-5:00 pm
1 stop12h 55m
Seattle/Tacoma Intl
Wed 1/28
2:35 pm-12:05 pm
1 stop12h 30m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Tue 3/17
1:05 pm-6:00 pm
1 stop12h 55m
Seattle/Tacoma Intl
Sat 4/4
7:00 pm-1:00 pm
1 stop33h 00m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Mon 2/9
11:35 am-11:51 pm
2 stops21h 16m
Seattle/Tacoma Intl
Mon 2/23
1:37 pm-3:30 pm
2 stops16h 53m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Fri 5/1
10:40 am-10:26 pm
2 stops20h 46m
Seattle/Tacoma Intl
Sat 5/23
1:35 pm-9:20 am
1 stop34h 45m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Sun 1/18
7:25 am-7:18 pm
2 stops20h 53m
Seattle/Tacoma Intl
Thu 1/29
7:35 am-5:10 pm
2 stops24h 35m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
To ensure you get the cheapest price possible for a flight from Frankfurt am Main Airport to Seattle, you should look to book at least 42 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, March is the cheapest month in which you can book a flight from Frankfurt am Main Airport to Seattle (average of $413). Flying from Frankfurt am Main Airport to Seattle in July is currently the most expensive (average of $625). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Frankfurt am Main Airport to Seattle as you normally would.
About 21% of weekly flights between Frankfurt am Main and Seattle have experienced delays in the past year, with the average delay time being 111 minutes.
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Monday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Air Antilles have had the lowest number of delays on this route, with just 9% of flights being delayed.
Reykjavik (KEF) – chosen by Cheapflights users on 67% of 1-stop itineraries from Frankfurt am Main Airport to Seattle on Cheapflights.
London (LHR) is the most affordable 1-stop option, with an average round-trip price of $622.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 12h 43m.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 05m.
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Michelle,Dec 2025
DEN - MKE
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Michelle,Dec 2025
DEN - MKE
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Michelle,Dec 2025
DEN - MKE
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Michelle,Dec 2025
DEN - MKE
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Michelle,Dec 2025
DEN - MKE
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$478 | Average$655 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$506 | Average$753 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$550 | Average$686 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$558 | Average$723 | FlexibilityNo cancel fee | On-time69% |