$666+ 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
Apr 11 — Apr 181
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Sierra Leone with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
Best
Last-minute
One-way
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 March 12, 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 March 12, 2026.
This BusinessClass deal was found by Cheapflights users on 3/11. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:40 pm
SEA
- FNA
2 stops47h 45m
Multiple Airlines
Fri 5/155:25 am
FNA
- SEA
2 stops34h 21m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$1,530
This United Airlines deal was found by Cheapflights users on 3/8. 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 10/811:00 am
SEA
- FNA
2 stops23h 25m
United Airlines
Mon 10/126:45 pm
FNA
- SEA
3 stops32h 25m
United Airlines
Deal found 3/8![United Airlines logo]()
$1,543
This Gurufare deal was found by Cheapflights users on 3/11. 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.
Tue 4/2110:48 am
SEA
- FNA
2 stops23h 37m
Brussels Airlines
Fri 5/156:45 pm
FNA
- SEA
3 stops33h 23m
Brussels Airlines
Deal found 3/11![Brussels Airlines logo]()
$1,654
This Air Canada deal was found by Cheapflights users on 3/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:40 am
SEA
- FNA
3 stops28h 45m
Air Canada
Fri 5/156:45 pm
FNA
- SEA
3 stops33h 23m
Air Canada
Deal found 3/12![Air Canada logo]()
$1,668
This Gurufare deal was found by Cheapflights users on 3/9. 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.
Tue 4/288:00 am
SEA
- FNA
2 stops26h 25m
Multiple Airlines
Tue 5/196:45 pm
FNA
- SEA
3 stops29h 14m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,671
This Ovago deal was found by Cheapflights users on 3/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:00 am
SEA
- FNA
2 stops27h 25m
Multiple Airlines
Tue 5/126:45 pm
FNA
- SEA
3 stops29h 14m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$1,767
This BusinessClass deal was found by Cheapflights users on 3/9. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:00 am
SEA
- FNA
2 stops26h 25m
Brussels Airlines
Tue 5/196:45 pm
FNA
- SEA
3 stops31h 15m
Brussels Airlines
Deal found 3/9![Brussels Airlines logo]()
$1,780
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 March 12, 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 March 12, 2026.
This Gurufare deal was found by Cheapflights users on 3/12. 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.
Tue 4/2110:48 am
SEA
- FNA
2 stops23h 37m
Brussels Airlines
Fri 5/156:45 pm
FNA
- SEA
3 stops33h 23m
Brussels Airlines
Deal found 3/12![Brussels Airlines logo]()
$1,655
This Air Canada deal was found by Cheapflights users on 3/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:40 am
SEA
- FNA
3 stops28h 45m
Air Canada
Fri 5/156:45 pm
FNA
- SEA
3 stops33h 23m
Air Canada
Deal found 3/11![Air Canada logo]()
$1,740
This Gurufare deal was found by Cheapflights users on 3/11. 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.
Tue 4/216:13 am
SEA
- FNA
3 stops27h 12m
Multiple Airlines
Tue 5/128:05 am
FNA
- SEA
3 stops35h 38m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$1,784
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sun 4/2611:59 pm
SEA
- FNA
2 stops34h 26m
United Airlines
Wed 5/206:45 pm
FNA
- SEA
3 stops31h 51m
United Airlines
Deal found 3/9![United Airlines logo]()
$1,793
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/3010:52 am
SEA
- FNA
2 stops23h 33m
United Airlines
Wed 5/206:45 pm
FNA
- SEA
3 stops31h 51m
United Airlines
Deal found 3/9![United Airlines logo]()
$1,793
This Ovago deal was found by Cheapflights users on 3/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/262:39 pm
SEA
- FNA
2 stops43h 46m
Multiple Airlines
Sun 5/36:45 pm
FNA
- SEA
3 stops31h 15m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$1,832
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/3010:52 am
SEA
- FNA
2 stops23h 33m
United Airlines
Fri 5/226:45 pm
FNA
- SEA
3 stops31h 51m
United Airlines
Deal found 3/9![United Airlines logo]()
$1,843
This United Airlines deal was found by Cheapflights users on 3/9. 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 5/110:41 pm
SEA
- FNA
2 stops35h 44m
United Airlines
Fri 5/226:45 pm
FNA
- SEA
3 stops34h 54m
United Airlines
Deal found 3/9![United Airlines logo]()
$1,843
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 4/2810:48 am
SEA
- FNA
2 stops23h 37m
United Airlines
Fri 5/226:45 pm
FNA
- SEA
3 stops36h 14m
United Airlines
Deal found 3/9![United Airlines logo]()
$1,843
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 4/2911:35 am
SEA
- FNA
3 stops46h 50m
United Airlines
Fri 5/226:45 pm
FNA
- SEA
3 stops36h 14m
United Airlines
Deal found 3/9![United Airlines logo]()
$1,858
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Sun 4/2612:08 pm
SEA
- FNA
3 stops46h 17m
United Airlines
Sun 5/36:45 pm
FNA
- SEA
3 stops35h 02m
United Airlines
Deal found 3/12![United Airlines logo]()
$1,859
Last-minute flights from Seattle to Sierra LeoneDiscover last-minute flight deals from Seattle to Sierra Leone. Data last updated March 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Sierra Leone. Data last updated March 12, 2026 and is based on user searches.
This BusinessClass deal was found by Cheapflights users on 3/11. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:40 pm
SEA
- FNA
2 stops47h 45m
Multiple Airlines
Fri 5/155:25 am
FNA
- SEA
2 stops34h 21m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$1,530
This Gurufare deal was found by Cheapflights users on 3/11. 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.
Tue 4/2110:48 am
SEA
- FNA
2 stops23h 37m
Brussels Airlines
Fri 5/156:45 pm
FNA
- SEA
3 stops33h 23m
Brussels Airlines
Deal found 3/11![Brussels Airlines logo]()
$1,654
This Air Canada deal was found by Cheapflights users on 3/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:40 am
SEA
- FNA
3 stops28h 45m
Air Canada
Fri 5/156:45 pm
FNA
- SEA
3 stops33h 23m
Air Canada
Deal found 3/12![Air Canada logo]()
$1,668
This Ovago deal was found by Cheapflights users on 3/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:00 am
SEA
- FNA
2 stops27h 25m
Multiple Airlines
Tue 5/126:45 pm
FNA
- SEA
3 stops29h 14m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$1,767
This BusinessClass deal was found by Cheapflights users on 3/9. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:00 am
SEA
- FNA
2 stops26h 25m
Brussels Airlines
Tue 5/196:45 pm
FNA
- SEA
3 stops31h 15m
Brussels Airlines
Deal found 3/9![Brussels Airlines logo]()
$1,780
This BusinessClass deal was found by Cheapflights users on 3/9. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:00 am
SEA
- FNA
2 stops26h 25m
Brussels Airlines
Wed 5/206:45 pm
FNA
- SEA
3 stops33h 23m
Brussels Airlines
Deal found 3/9![Brussels Airlines logo]()
$1,781
This Gurufare deal was found by Cheapflights users on 3/9. 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.
Tue 4/288:00 am
SEA
- FNA
2 stops26h 25m
Multiple Airlines
Tue 5/196:45 pm
FNA
- SEA
3 stops29h 14m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,671
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 March 12, 2026.
Search for one-way flight options from Seattle to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated March 12, 2026.
This BusinessClass deal was found by Cheapflights users on 3/7. 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 BusinessClass 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 3/7![Multiple Airlines logo]()
$666
This BusinessClass deal was found by Cheapflights users on 3/12. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2210:20 pm
SEA
- FNA
2 stops23h 05m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$805
This KAYAK deal was found by Cheapflights users on 3/12. 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 6/237:30 am
SEA
- FNA
2 stops26h 55m
Brussels Airlines
Deal found 3/12![Brussels Airlines logo]()
$878
This Ovago deal was found by Cheapflights users on 3/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2111:52 pm
SEA
- FNA
2 stops34h 33m
Brussels Airlines
Deal found 3/12![Brussels Airlines logo]()
$891
This KAYAK deal was found by Cheapflights users on 3/12. 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 6/1911:00 pm
SEA
- FNA
2 stops35h 25m
Lufthansa
Deal found 3/12![Lufthansa logo]()
$938
This KAYAK deal was found by Cheapflights users on 3/12. 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.
Sat 6/204:30 pm
SEA
- FNA
2 stops41h 45m
SWISS
Deal found 3/12![SWISS logo]()
$940
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/187:35 pm
SEA
- FNA
3 stops53h 00m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$948
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1910:30 am
SEA
- FNA
3 stops38h 05m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$949
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/217:10 pm
SEA
- FNA
3 stops53h 25m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$952
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 March 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,530 (BusinessClass) |
One-way from | $666 (BusinessClass) |
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 March 12, 2026.
Use the filters below to find and compare flights from Seattle to Sierra Leone that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Tue 4/21
10:48 am-5:25 pm
2 stops23h 37m
Freetown Lungi Intl
Fri 5/15
6:45 pm-9:08 pm
3 stops33h 23m
$1,655
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Tue 4/21
5:40 am-5:25 pm
3 stops28h 45m
Freetown Lungi Intl
Fri 5/15
6:45 pm-9:08 pm
3 stops33h 23m
$1,740
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Tue 4/21
6:13 am-4:25 pm
3 stops27h 12m
Freetown Lungi Intl
Tue 5/12
8:05 am-12:43 pm
3 stops35h 38m
$1,784
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Sun 4/26
11:59 pm-5:25 pm
2 stops34h 26m
Freetown Lungi Intl
Wed 5/20
6:45 pm-7:36 pm
3 stops31h 51m
$1,793
Quickest round-trip
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Thu 4/30
10:52 am-5:25 pm
2 stops23h 33m
Freetown Lungi Intl
Wed 5/20
6:45 pm-7:36 pm
3 stops31h 51m
$1,793
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Sun 4/26
2:39 pm-5:25 pm
2 stops43h 46m
Freetown Lungi Intl
Sun 5/3
6:45 pm-7:00 pm
3 stops31h 15m
$1,832
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Thu 4/30
10:52 am-5:25 pm
2 stops23h 33m
Freetown Lungi Intl
Fri 5/22
6:45 pm-7:36 pm
3 stops31h 51m
$1,843
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Fri 5/1
10:41 pm-5:25 pm
2 stops35h 44m
Freetown Lungi Intl
Fri 5/22
6:45 pm-10:39 pm
3 stops34h 54m
$1,843
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Tue 4/28
10:48 am-5:25 pm
2 stops23h 37m
Freetown Lungi Intl
Fri 5/22
6:45 pm-11:59 pm
3 stops36h 14m
$1,843
SeattleFreetown
SEA - FNA
SEAFNA
Seattle/Tacoma Intl
Wed 4/29
11:35 am-5:25 pm
3 stops46h 50m
Freetown Lungi Intl
Fri 5/22
6:45 pm-11:59 pm
3 stops36h 14m
$1,858
Showing 1-10 of 17 resultsSorted by cheapest first
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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