$490+ Cheap flights from Jacksonville (JAX) to Keflavik Intl (KEF)
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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — KEF
Sep 16 — Sep 231
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Jacksonville to Keflavik Intl 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 Jacksonville to Keflavik Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Jacksonville to Keflavik IntlExplore the most affordable flight options available from Jacksonville to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
Explore the most affordable flight options available from Jacksonville to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:10 pm -
1 stop29h 55m
Mon 10/265:00 pm -
1 stop29h 10m
Deal found 8/12![Icelandair logo]()
$687
This oojo deal was found by Cheapflights users on 8/13. 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.
Wed 9/234:44 pm -
1 stop11h 26m
Fri 10/27:50 pm -
1 stop26h 20m
Deal found 8/13![Icelandair logo]()
$692
This oojo deal was found by Cheapflights users on 8/16. 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 9/157:00 pm -
1 stop9h 55m
Tue 9/227:50 pm -
1 stop26h 20m
Deal found 8/16![Icelandair logo]()
$700
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:44 pm -
1 stop11h 26m
Sun 10/47:55 pm -
1 stop18h 57m
Deal found 8/12![Icelandair logo]()
$704
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:05 am -
1 stop22h 50m
Fri 9/117:50 pm -
1 stop26h 20m
Deal found 8/12![Icelandair logo]()
$705
This Justfly.com deal was found by Cheapflights users on 8/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:44 pm -
1 stop11h 26m
Sun 10/47:55 pm -
1 stop18h 57m
Deal found 8/12![Multiple Airlines logo]()
$714
This Justfly.com deal was found by Cheapflights users on 8/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:25 pm -
1 stop13h 30m
Tue 10/275:00 pm -
1 stop29h 10m
Deal found 8/12![Multiple Airlines logo]()
$730
This Icelandair deal was found by Cheapflights users on 8/16. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:06 am -
1 stop15h 59m
Tue 9/17:55 pm -
1 stop17h 20m
Deal found 8/16![Multiple Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 9/2312:37 pm -
1 stop16h 13m
Fri 10/29:15 am -
2 stops33h 21m
Deal found 8/12![United Airlines logo]()
$752
This oojo deal was found by Cheapflights users on 8/14. 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.
Fri 10/98:10 pm -
1 stop29h 55m
Fri 10/167:50 pm -
1 stop26h 07m
Deal found 8/14![Icelandair logo]()
$772
Best flights from Jacksonville to Keflavik IntlDiscover carefully curated flight deals from Jacksonville to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from Jacksonville to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 9/237:05 am -
2 stops21h 45m
Fri 10/29:15 am -
2 stops33h 47m
Deal found 8/12![United Airlines logo]()
$756
This oojo deal was found by Cheapflights users on 8/16. 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.
Fri 10/98:10 pm -
1 stop29h 55m
Fri 10/167:50 pm -
1 stop26h 07m
Deal found 8/16![Icelandair logo]()
$772
This Icelandair deal was found by Cheapflights users on 8/16. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1110:00 am -
1 stop15h 10m
Fri 1/155:00 pm -
1 stop22h 35m
Deal found 8/16![Multiple Airlines logo]()
$807
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/94:58 pm -
1 stop11h 52m
Fri 10/169:15 am -
2 stops37h 54m
Deal found 8/13![United Airlines logo]()
$812
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Sat 10/177:20 pm -
2 stops33h 30m
Mon 10/2612:00 pm -
2 stops15h 15m
Deal found 8/12![United Airlines logo]()
$836
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 10/203:42 pm -
2 stops12h 13m
Mon 10/2612:00 pm -
1 stop15h 42m
Deal found 8/12![United Airlines logo]()
$865
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 10/2112:40 pm -
2 stops16h 10m
Mon 10/2612:00 pm -
2 stops15h 15m
Deal found 8/12![United Airlines logo]()
$866
This United Airlines deal was found by Cheapflights users on 8/16. 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 10/164:58 pm -
1 stop11h 52m
Sat 10/2410:00 am -
2 stops32h 20m
Deal found 8/16![United Airlines logo]()
$876
Last-minute flights from Jacksonville to Keflavik IntlDiscover last-minute flight deals from Jacksonville to Keflavik Intl. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Keflavik Intl. Data last updated August 17, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/13. 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 8/246:05 am -
1 stop22h 50m
Fri 9/117:50 pm -
1 stop26h 20m
Deal found 8/13![Icelandair logo]()
$705
This Icelandair deal was found by Cheapflights users on 8/16. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:06 am -
1 stop15h 59m
Tue 9/17:55 pm -
1 stop17h 20m
Deal found 8/16![Multiple Airlines logo]()
$739
This oojo deal was found by Cheapflights users on 8/16. 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 9/157:00 pm -
1 stop9h 55m
Tue 9/227:50 pm -
1 stop26h 20m
Deal found 8/16![Icelandair logo]()
$700
This oojo deal was found by Cheapflights users on 8/13. 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.
Wed 9/234:44 pm -
1 stop11h 26m
Fri 10/27:50 pm -
1 stop26h 20m
Deal found 8/13![Icelandair logo]()
$692
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 9/2312:37 pm -
1 stop16h 13m
Fri 10/29:15 am -
2 stops33h 21m
Deal found 8/12![United Airlines logo]()
$752
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:44 pm -
1 stop11h 26m
Sun 10/47:55 pm -
1 stop18h 57m
Deal found 8/12![Icelandair logo]()
$704
This Justfly.com deal was found by Cheapflights users on 8/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:44 pm -
1 stop11h 26m
Sun 10/47:55 pm -
1 stop18h 57m
Deal found 8/12![Multiple Airlines logo]()
$714
One-way flights from Jacksonville to Keflavik IntlSearch for one-way flight options from Jacksonville to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from Jacksonville to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Fri 10/97:12 pm -
2 stops57h 38m
Deal found 8/12![United Airlines logo]()
$490
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 10/910:39 pm -
3 stops30h 31m
Deal found 8/12![Multiple Airlines logo]()
$664
Find flight deals from Jacksonville to Keflavik Intl
Discover tips and strategies to find the most affordable flight options for your journey from Jacksonville (JAX) to Keflavik Intl (KEF). 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 August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $687 (oojo) |
One-way from | $490 (United Airlines) |
Popular in | December |
Cheapest in | November |
Average price | $1,116 |
Cheapflights Fare Finder
Customize your flight search to find flights from Jacksonville to Keflavik Intl 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 August 17, 2026.
Use the filters below to find and compare flights from Jacksonville to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Wed 9/23
7:05 am-8:50 am
2 stops21h 45m
Reykjavik Keflavik Intl
Fri 10/2
9:15 am-3:02 pm
2 stops33h 47m
$756
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Fri 10/9
8:10 pm-6:05 am
1 stop29h 55m
Reykjavik Keflavik Intl
Fri 10/16
7:50 pm-5:57 pm
1 stop26h 07m
$772
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Mon 1/11
10:00 am-6:10 am
1 stop15h 10m
Reykjavik Keflavik Intl
Fri 1/15
5:00 pm-10:35 am
1 stop22h 35m
$807
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Fri 10/9
4:58 pm-8:50 am
1 stop11h 52m
Reykjavik Keflavik Intl
Fri 10/16
9:15 am-7:09 pm
2 stops37h 54m
$812
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Sat 10/17
7:20 pm-8:50 am
2 stops33h 30m
Reykjavik Keflavik Intl
Mon 10/26
12:00 pm-11:15 pm
2 stops15h 15m
$836
Quickest round-trip
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Tue 10/20
3:42 pm-7:55 am
2 stops12h 13m
Reykjavik Keflavik Intl
Mon 10/26
12:00 pm-11:42 pm
1 stop15h 42m
$865
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Wed 10/21
12:40 pm-8:50 am
2 stops16h 10m
Reykjavik Keflavik Intl
Mon 10/26
12:00 pm-11:15 pm
2 stops15h 15m
$866
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Fri 10/16
4:58 pm-8:50 am
1 stop11h 52m
Reykjavik Keflavik Intl
Sat 10/24
10:00 am-2:20 pm
2 stops32h 20m
$876
Cheapest one-way
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Fri 10/9
7:12 pm-8:50 am
2 stops57h 38m
$490
Quickest one-way
JacksonvilleReykjavik
JAX Jacksonville - KEF Reykjavik Keflavik Intl
JAXKEF
Jacksonville
Fri 10/9
10:39 pm-9:10 am
3 stops30h 31m
$664
Sorted by cheapest first
Compare providers for flights from Jacksonville to Keflavik Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Jacksonville to Keflavik Intl in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Jacksonville-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Jacksonville-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Jacksonville-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Jacksonville-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Jacksonville-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Jacksonville to Keflavik Intl
Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Jacksonville with our price prediction graph.
JAX-KEF
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.
Reviews of airlines servicing Keflavik Intl
Get insights into the airlines that provide service to Keflavik Intl. 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 Keflavik Intl. Reviews last updated August 17, 2026.
Read reviews from past customers who have flown KLM,Delta, andUnited Airlines from Jacksonville to Reykjavik Keflavik Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.3
Boarding
7.8
Entertainment
7.2
Overall
7.8
Crew
8.4
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Boarding
7.8
Entertainment
7.2
Overall
7.8
Crew
8.4
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Boarding
7.8
Entertainment
7.2
Overall
7.8
Crew
8.4
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Boarding
7.8
Entertainment
7.2
Overall
7.8
Crew
8.4
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Related info for your journey
Find useful and relevant information for your journey from Jacksonville to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Reykjavik Keflavik Intl Airport?
Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locationsKeflavik
Hveragerdi
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Keflavik Intl flight routes
Other flight options
Other flights from Jacksonville
Popular flights
Alternative routes for Jacksonville to Keflavik Intl
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Keflavik Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Jacksonville to Keflavik Intl by cabin class
Find flights from Jacksonville to Keflavik Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Keflavik Intl
Explore flights to Keflavik Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 17, 2026.
Jacksonville and Keflavik Intl flights
Browse other Jacksonville and Keflavik Intl flight options. Last updated on August 17, 2026.
Other flights from Jacksonville
Browse through other flights departing from Jacksonville. Flights are based on user searches made on Cheapflights and were last updated on August 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Jacksonville to Keflavik Intl
Discover the top 3 airlines that operate flights from Jacksonville to Keflavik Intl. 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 2,558,603 searches. Data last updated August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$257 | Average$1,299 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$554 | Average$1,049 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$704 | Average$1,365 | FlexibilityNo cancel fee | On-time69% |