$1,628+ Cheap flights from Seattle (SEA) to Sierra Leone
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FNA
Nov 22 — Nov 291
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
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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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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 October 23, 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 October 23, 2026.
This Ovago deal was found by Cheapflights users on 10/19. 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.
Mon 10/268:09 am -
3 stops25h 11m
Tue 11/107:55 am -
3 stops34h 21m
Deal found 10/19![Multiple Airlines logo]()
$1,675
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/268:09 am -
2 stops27h 31m
Tue 11/108:10 pm -
3 stops33h 29m
Deal found 10/19![United Airlines logo]()
$1,769
This oojo deal was found by Cheapflights users on 10/19. 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.
Mon 10/269:36 pm -
3 stops36h 09m
Tue 11/109:00 am -
4 stops43h 13m
Deal found 10/19![Ethiopian Air logo]()
$1,843
This KAYAK deal was found by Cheapflights users on 10/20. 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 12/57:05 pm -
3 stops39h 20m
Mon 3/17:45 pm -
3 stops32h 55m
Deal found 10/20![Brussels Airlines logo]()
$1,853
This Ovago deal was found by Cheapflights users on 10/20. 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.
Sat 12/53:15 pm -
3 stops43h 10m
Mon 3/17:45 pm -
2 stops47h 55m
Deal found 10/20![Austrian Airlines logo]()
$1,862
This KAYAK deal was found by Cheapflights users on 10/20. 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 12/47:05 pm -
3 stops39h 35m
Tue 3/28:10 pm -
3 stops24h 50m
Deal found 10/20![Multiple Airlines logo]()
$1,867
This KAYAK deal was found by Cheapflights users on 10/20. 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 12/77:05 pm -
3 stops39h 35m
Tue 3/28:10 pm -
3 stops24h 50m
Deal found 10/20![Multiple Airlines logo]()
$1,886
This IEagle deal was found by Cheapflights users on 10/20. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:40 pm -
3 stops35h 05m
Thu 3/47:55 am -
3 stops36h 18m
Deal found 10/20![Multiple Airlines logo]()
$1,953
This IEagle deal was found by Cheapflights users on 10/20. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:40 pm -
3 stops35h 05m
Sat 2/277:55 am -
3 stops33h 53m
Deal found 10/20![Multiple Airlines logo]()
$1,991
This KAYAK deal was found by Cheapflights users on 10/20. 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.
Thu 12/39:40 pm -
3 stops35h 05m
Sun 2/287:55 am -
3 stops36h 18m
Deal found 10/20![Multiple Airlines logo]()
$2,007
This Gurufare deal was found by Cheapflights users on 10/20. 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.
Sat 12/58:09 am -
3 stops24h 11m
Thu 2/257:55 am -
3 stops35h 04m
Deal found 10/20![Multiple Airlines logo]()
$2,014
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 October 23, 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 October 23, 2026.
This United Airlines deal was found by Cheapflights users on 10/22. 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 3/46:10 am -
2 stops28h 30m
Mon 3/87:45 pm -
3 stops31h 18m
Deal found 10/22![United Airlines logo]()
$1,628
This KAYAK deal was found by Cheapflights users on 10/18. 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 2/17:00 am -
2 stops27h 40m
Wed 4/286:45 pm -
3 stops29h 14m
Deal found 10/18![Multiple Airlines logo]()
$1,686
This United Airlines deal was found by Cheapflights users on 10/19. 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 2/18:30 am -
3 stops50h 10m
Wed 4/286:45 pm -
3 stops32h 25m
Deal found 10/19![United Airlines logo]()
$1,728
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Sat 2/1311:00 am -
2 stops23h 40m
Wed 2/248:10 pm -
3 stops34h 35m
Deal found 10/20![United Airlines logo]()
$1,765
Last-minute flights from Seattle to Sierra LeoneDiscover last-minute flight deals from Seattle to Sierra Leone. Data last updated October 23, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Sierra Leone. Data last updated October 23, 2026 and is based on user searches.
This Ovago deal was found by Cheapflights users on 10/19. 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.
Mon 10/268:09 am -
3 stops25h 11m
Tue 11/107:55 am -
3 stops34h 21m
Deal found 10/19![Multiple Airlines logo]()
$1,675
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/268:09 am -
2 stops27h 31m
Tue 11/108:10 pm -
3 stops33h 29m
Deal found 10/19![United Airlines logo]()
$1,769
This oojo deal was found by Cheapflights users on 10/19. 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.
Mon 10/269:36 pm -
3 stops36h 09m
Tue 11/109:00 am -
4 stops43h 13m
Deal found 10/19![Ethiopian Air logo]()
$1,843
This Ovago deal was found by Cheapflights users on 10/21. 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.
Fri 11/203:15 pm -
3 stops43h 25m
Fri 11/278:10 pm -
3 stops34h 01m
Deal found 10/21![Multiple Airlines logo]()
$2,371
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 October 23, 2026.
Search for one-way flight options from Seattle to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
This Ovago deal was found by Cheapflights users on 10/21. 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 12/2010:59 pm -
2 stops21h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$1,794
This oojo deal was found by Cheapflights users on 10/21. 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.
Sun 12/209:45 pm -
4 stops59h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Ethiopian Air logo]()
$2,384
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 October 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,578 (United Airlines) |
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 7,457,451 searches. Data last updated October 23, 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 Seattle/Tacoma Intl - FNA Freetown Lungi Intl
SEAFNA
Seattle/Tacoma Intl
Thu 3/4
6:10 am-6:40 pm
2 stops28h 30m
Freetown Lungi Intl
Mon 3/8
7:45 pm-7:03 pm
3 stops31h 18m
$1,628
SeattleFreetown
SEA Seattle/Tacoma Intl - FNA Freetown Lungi Intl
SEAFNA
Seattle/Tacoma Intl
Mon 2/1
7:00 am-6:40 pm
2 stops27h 40m
Freetown Lungi Intl
Wed 4/28
6:45 pm-4:59 pm
3 stops29h 14m
$1,686
SeattleFreetown
SEA Seattle/Tacoma Intl - FNA Freetown Lungi Intl
SEAFNA
Seattle/Tacoma Intl
Mon 2/1
8:30 am-6:40 pm
3 stops50h 10m
Freetown Lungi Intl
Wed 4/28
6:45 pm-8:10 pm
3 stops32h 25m
$1,728
SeattleFreetown
SEA Seattle/Tacoma Intl - FNA Freetown Lungi Intl
SEAFNA
Seattle/Tacoma Intl
Sat 2/13
11:00 am-6:40 pm
2 stops23h 40m
Freetown Lungi Intl
Wed 2/24
8:10 pm-10:45 pm
3 stops34h 35m
$1,765
Quickest round-trip
SeattleFreetown
SEA Seattle/Tacoma Intl - FNA Freetown Lungi Intl
SEAFNA
Seattle/Tacoma Intl
Sun 12/20
6:25 pm-4:20 am
3 stops49h 55m
Freetown Lungi Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$1,815
SeattleFreetown
SEA Seattle/Tacoma Intl - FNA Freetown Lungi Intl
SEAFNA
Seattle/Tacoma Intl
Sun 12/20
9:45 pm-4:45 pm
4 stops59h 00m
Freetown Lungi Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$2,384
Sorted 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.
Reviews of airlines servicing Sierra Leone
Get insights into the airlines that provide service to Sierra Leone. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sierra Leone. Reviews last updated October 23, 2026.
Get a feel of what it's like to fly with Brussels Airlines and United Airlines from Seattle to Sierra Leone by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.4
Entertainment
6.2
Crew
7.9
Overall
7.3
Boarding
7.4
Comfort
7.1
Reviews
1 / 20
8.0
ExcellentCourtney,Jul 2026
MXP - YUL
Food
6.4
Entertainment
6.2
Crew
7.9
Overall
7.3
Boarding
7.4
Comfort
7.1
Reviews
1 / 20
8.0
ExcellentCourtney,Jul 2026
MXP - YUL
Food
6.4
Entertainment
6.2
Crew
7.9
Overall
7.3
Boarding
7.4
Comfort
7.1
Reviews
1 / 20
8.0
ExcellentCourtney,Jul 2026
MXP - YUL
Related info for your journey
Find useful and relevant information for your journey from Seattle to Sierra Leone. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Sierra Leone
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Sierra Leone by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Sierra Leone by cabin class
Find flights from Seattle to Sierra Leone, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Sierra Leone flights
Browse other Seattle and Sierra Leone flight options. Last updated on October 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Seattle to Sierra Leone
Discover the top 2 airlines that operate flights from Seattle to Sierra Leone. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,404 | Average$1,789 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,551 | Average$1,789 | FlexibilityNo cancel fee | On-time69% |