$636+ Cheap flights from Seattle (SEA) to Sierra Leone
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FNA
Mar 6 — Mar 131
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Sierra Leone
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Last-minute
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Cheapest flights from Seattle to Sierra LeoneExplore the most affordable flight options available from Seattle to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.
Explore the most affordable flight options available from Seattle to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:50 pm
SEA
- FNA
2 stops35h 50m
United Airlines
Mon 11/27:45 pm
FNA
- SEA
3 stops32h 25m
United Airlines
Deal found 2/3![United Airlines logo]()
$1,407
This KAYAK deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/910:58 am
SEA
- FNA
2 stops23h 42m
Multiple Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops24h 35m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,472
This Gurufare deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
SEA
- FNA
2 stops27h 40m
Multiple Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops24h 35m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,501
This KAYAK deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/97:00 am
SEA
- FNA
2 stops27h 40m
Brussels Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops33h 08m
Brussels Airlines
Deal found 2/4![Brussels Airlines logo]()
$1,533
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/912:57 pm
SEA
- FNA
3 stops45h 43m
United Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops33h 08m
United Airlines
Deal found 2/2![United Airlines logo]()
$1,537
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/67:00 am
SEA
- FNA
2 stops27h 40m
United Airlines
Sun 2/88:10 pm
FNA
- SEA
3 stops34h 33m
United Airlines
Deal found 2/2![United Airlines logo]()
$1,553
This Turkish Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:00 pm
SEA
- FNA
2 stops45h 25m
Turkish Airlines
Sun 11/11:25 am
FNA
- SEA
2 stops24h 40m
Turkish Airlines
Deal found 2/2![Turkish Airlines logo]()
$1,564
This KAYAK deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:55 am
SEA
- FNA
2 stops23h 45m
Brussels Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops33h 08m
Brussels Airlines
Deal found 2/4![Brussels Airlines logo]()
$1,578
Best flights from Seattle to Sierra LeoneDiscover carefully curated flight deals from Seattle to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
Discover carefully curated flight deals from Seattle to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
This Gurufare deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:55 am
SEA
- FNA
2 stops23h 45m
Multiple Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops24h 35m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,501
This KAYAK deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:55 am
SEA
- FNA
2 stops23h 45m
Brussels Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops33h 08m
Brussels Airlines
Deal found 2/4![Brussels Airlines logo]()
$1,578
This SmartFares deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1310:43 am
SEA
- FNA
2 stops34h 37m
Multiple Airlines
Fri 6/55:25 am
FNA
- SEA
2 stops40h 13m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,640
This Gurufare deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1310:55 am
SEA
- FNA
2 stops24h 45m
Brussels Airlines
Fri 6/56:45 pm
FNA
- SEA
3 stops33h 00m
Brussels Airlines
Deal found 2/2![Brussels Airlines logo]()
$1,678
Last-minute flights from Seattle to Sierra LeoneDiscover last-minute flight deals from Seattle to Sierra Leone. Data last updated February 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Sierra Leone. Data last updated February 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/67:00 am
SEA
- FNA
2 stops27h 40m
United Airlines
Sun 2/88:10 pm
FNA
- SEA
3 stops34h 33m
United Airlines
Deal found 2/2![United Airlines logo]()
$1,553
This KAYAK deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/910:58 am
SEA
- FNA
2 stops23h 42m
Multiple Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops24h 35m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,472
This KAYAK deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/97:00 am
SEA
- FNA
2 stops27h 40m
Brussels Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops33h 08m
Brussels Airlines
Deal found 2/4![Brussels Airlines logo]()
$1,533
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/912:57 pm
SEA
- FNA
3 stops45h 43m
United Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops33h 08m
United Airlines
Deal found 2/2![United Airlines logo]()
$1,537
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1212:12 pm
SEA
- FNA
3 stops46h 28m
United Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops33h 08m
United Airlines
Deal found 2/3![United Airlines logo]()
$1,664
This Gurufare deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
SEA
- FNA
2 stops27h 40m
Multiple Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops24h 35m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,501
This KAYAK deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:55 am
SEA
- FNA
2 stops23h 45m
Brussels Airlines
Wed 5/66:45 pm
FNA
- SEA
3 stops33h 08m
Brussels Airlines
Deal found 2/4![Brussels Airlines logo]()
$1,578
This SmartFares deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1310:43 am
SEA
- FNA
2 stops34h 37m
Multiple Airlines
Fri 6/55:25 am
FNA
- SEA
2 stops40h 13m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,640
One-way flights from Seattle to Sierra LeoneSearch for one-way flight options from Seattle to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
Search for one-way flight options from Seattle to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
This KAYAK deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:53 pm
SEA
- FNA
2 stops46h 32m
Multiple Airlines
Deal found 2/4![Multiple Airlines logo]()
$636
This oojo deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:13 am
SEA
- FNA
3 stops27h 12m
Ethiopian Air
Deal found 2/2![Ethiopian Air logo]()
$963
Find flight deals from Seattle to Sierra Leone
Keep the following information in mind while searching for Seattle to Sierra Leone flight deals. Data was last updated February 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,501 (Gurufare) |
One-way from | $636 (KAYAK) |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Sierra Leone that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Seattle to Sierra Leone that are best for you.
Fly from
Seattle
Fly to
Sierra Leone
Route
Depart
Return
Price
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Fri 2/20
10:55 am-6:40 pm
2 stops23h 45m
Freetown Lungi Intl
Wed 5/6
6:45 pm-12:20 pm
3 stops24h 35m
$1,501
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Fri 2/20
10:55 am-6:40 pm
2 stops23h 45m
Freetown Lungi Intl
Wed 5/6
6:45 pm-8:53 pm
3 stops33h 08m
$1,578
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Fri 3/13
10:43 am-4:20 am
2 stops34h 37m
Freetown Lungi Intl
Fri 6/5
5:25 am-2:38 pm
2 stops40h 13m
$1,640
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Fri 3/13
10:55 am-6:40 pm
2 stops24h 45m
Freetown Lungi Intl
Fri 6/5
6:45 pm-8:45 pm
3 stops33h 00m
$1,678
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Tue 4/14
10:53 pm-4:25 am
2 stops46h 32m
$636
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Tue 4/14
6:13 am-4:25 pm
3 stops27h 12m
$963
Best time to book a flight from Seattle to Sierra Leone
Have a flexible travel schedule? Discover the best time to fly to Sierra Leone from Seattle with our price prediction graph.
SEA-FNA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Sierra Leone
SEA-SL0
SEA-FNA
No data available for this route at this time. Please check back soon.
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