
Discover tips and strategies to find the most affordable flight options for your journey from Leonardo da Vinci/Fiumicino (FCO) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 15, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $514 (KAYAK) |
One-way from | $452 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $1,003 |
Good one-way deal | $530 or less |
Fly from
Fly to
Route
Depart
Return
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Wed 5/5
3:15 pm-6:05 pm
Nonstop11h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Sun 1/17
11:25 am-5:00 pm
1 stop14h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Mon 1/18
11:25 am-5:00 pm
1 stop14h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Sat 1/16
11:25 am-5:00 pm
1 stop14h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Tue 11/24
8:35 pm-3:55 pm
3 stops52h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Thu 3/11
7:45 pm-11:21 pm
2 stops36h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Wed 5/5
7:05 am-10:29 pm
2 stops24h 24m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Thu 11/26
7:45 pm-5:10 pm
1 stop30h 25m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Sun 4/4
3:45 pm-8:40 pm
1 stop13h 55m
Seattle/Tacoma Intl
Sun 4/25
7:00 pm-2:35 pm
1 stop34h 35m
RomeSeattle
FCO Rome Fiumicino - SEA Seattle/Tacoma Intl
FCOSEA
Rome Fiumicino
Sat 12/12
6:55 am-5:10 pm
1 stop19h 15m
Seattle/Tacoma Intl
Sat 1/16
10:52 am-9:45 am
2 stops37h 53m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Find useful and relevant information for your journey from Leonardo da Vinci/Fiumicino to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.