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

Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $551 (American Airlines) |
One-way from | $404 (Expedia) |
Popular in | July |
Cheapest in | March |
Average price | $651 |
Good round-trip deal | $674 or less |
Good one-way deal | $654 or less |
Fly from
Fly to
Route
Depart
Return
Price
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Wed 2/18
10:15 am-9:16 pm
1 stop20h 01m
Seattle/Tacoma Intl
Mon 2/23
6:50 pm-6:10 pm
1 stop14h 20m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Fri 3/13
7:00 am-12:30 pm
1 stop13h 30m
Seattle/Tacoma Intl
Sat 3/21
7:50 pm-10:00 pm
1 stop18h 10m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Sun 4/5
7:40 pm-11:35 am
1 stop24h 55m
Seattle/Tacoma Intl
Tue 4/14
8:20 pm-6:00 pm
1 stop12h 40m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Fri 4/10
6:10 am-11:35 am
1 stop14h 25m
Seattle/Tacoma Intl
Wed 4/15
11:51 am-1:50 pm
2 stops16h 59m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Thu 4/9
2:35 pm-11:35 am
1 stop30h 00m
Seattle/Tacoma Intl
Mon 4/13
11:51 am-3:05 pm
2 stops18h 14m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Fri 4/10
6:10 am-11:35 am
1 stop14h 25m
Seattle/Tacoma Intl
Mon 4/13
8:20 pm-7:45 pm
1 stop14h 25m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Sat 2/28
11:35 am-11:32 pm
2 stops20h 57m
Seattle/Tacoma Intl
Sun 3/8
2:07 pm-4:50 pm
2 stops18h 43m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Wed 4/8
6:35 am-6:57 pm
2 stops21h 22m
Seattle/Tacoma Intl
Mon 4/13
11:51 am-3:05 pm
2 stops18h 14m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Mon 3/23
10:45 am-7:20 pm
1 stop16h 35m
Seattle/Tacoma Intl
Sun 4/19
6:45 pm-7:55 pm
1 stop16h 10m
Frankfurt am MainSeattle
FRA - SEA
FRASEA
Frankfurt am Main
Thu 12/25
10:50 am-7:28 pm
1 stop17h 38m
| 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 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 79 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 $621). 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.
A simple way to save on the total cost of your ticket is to fly from Frankfurt am Main Airport to Seattle in the evening. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the morning.
About 23% of weekly flights between Frankfurt am Main and Seattle have experienced delays in the past year, with the average delay time being 112 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 Wednesday 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 8% 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.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 12h 43m.
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.
Comfort
Entertainment
Food
Overall
Boarding
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Entertainment
Food
Overall
Boarding
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Entertainment
Food
Overall
Boarding
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Entertainment
Food
Overall
Boarding
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Entertainment
Food
Overall
Boarding
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$476 | Average$633 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$508 | Average$714 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$521 | Average$667 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$556 | Average$720 | FlexibilityNo cancel fee | On-time69% |