$234+ Cheap flights from Milwaukee (MKE) to Costa Rica
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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJO
Jul 8 — Jul 151
Round-trip
1 adult, Economy
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Cheapest flights from Milwaukee to Costa RicaExplore the most affordable flight options available from Milwaukee to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 8, 2026.
Explore the most affordable flight options available from Milwaukee to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 8, 2026.
This Delta deal was found by Cheapflights users on 6/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:55 am
MKE
- SJO
1 stop7h 01m
Delta
Thu 9/241:25 pm
SJO
- MKE
1 stop9h 27m
Delta
Deal found 6/3![Delta logo]()
$510
This American Airlines deal was found by Cheapflights users on 6/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:03 am
MKE
- SJO
2 stops16h 04m
American Airlines
Thu 9/242:57 pm
SJO
- MKE
2 stops19h 30m
American Airlines
Deal found 6/3![American Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 6/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:34 am
MKE
- LIR
1 stop7h 26m
Delta
Thu 9/31:25 pm
LIR
- MKE
1 stop9h 28m
Delta
Deal found 6/3![Delta logo]()
$567
This American Airlines deal was found by Cheapflights users on 6/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:48 pm
MKE
- LIR
2 stops19h 50m
American Airlines
Sat 9/512:24 pm
LIR
- MKE
1 stop8h 24m
American Airlines
Deal found 6/3![American Airlines logo]()
$572
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:05 am
MKE
- SJO
1 stop7h 40m
Southwest
Sun 8/309:00 am
SJO
- MKE
1 stop7h 55m
Southwest
Deal found 6/4![Southwest logo]()
$578
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:21 am
MKE
- SJO
1 stop16h 17m
American Airlines
Thu 7/3011:41 pm
SJO
- MKE
1 stop10h 36m
American Airlines
Deal found 6/4![American Airlines logo]()
$580
This Southwest deal was found by Cheapflights users on 6/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:40 am
MKE
- SJO
2 stops12h 00m
Southwest
Mon 8/319:00 am
SJO
- MKE
2 stops9h 50m
Southwest
Deal found 6/7![Southwest logo]()
$592
This American Airlines deal was found by Cheapflights users on 6/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:48 pm
MKE
- SJO
2 stops17h 21m
American Airlines
Tue 12/17:00 am
SJO
- MKE
2 stops16h 59m
American Airlines
Deal found 6/5![American Airlines logo]()
$595
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:19 pm
MKE
- LIR
1 stop17h 53m
American Airlines
Fri 12/111:39 pm
LIR
- MKE
1 stop10h 22m
American Airlines
Deal found 6/6![American Airlines logo]()
$606
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:03 pm
MKE
- LIR
2 stops18h 19m
American Airlines
Thu 7/303:40 pm
LIR
- MKE
1 stop18h 37m
American Airlines
Deal found 6/7![American Airlines logo]()
$611
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 am
MKE
- LIR
1 stop7h 38m
American Airlines
Thu 9/32:45 pm
LIR
- MKE
2 stops19h 17m
American Airlines
Deal found 6/4![American Airlines logo]()
$616
This United Airlines deal was found by Cheapflights users on 6/5. 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 10/305:00 am
MKE
- LIR
2 stops11h 08m
United Airlines
Tue 11/178:35 am
LIR
- MKE
1 stop14h 11m
United Airlines
Deal found 6/5![United Airlines logo]()
$621
Best flights from Milwaukee to Costa RicaDiscover carefully curated flight deals from Milwaukee to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 8, 2026.
Discover carefully curated flight deals from Milwaukee to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 8, 2026.
This Delta deal was found by Cheapflights users on 6/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:34 am
MKE
- LIR
1 stop7h 26m
Delta
Thu 9/31:25 pm
LIR
- MKE
1 stop9h 28m
Delta
Deal found 6/4![Delta logo]()
$567
This American Airlines deal was found by Cheapflights users on 6/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:48 pm
MKE
- LIR
2 stops17h 39m
American Airlines
Sat 9/52:45 pm
LIR
- MKE
2 stops20h 25m
American Airlines
Deal found 6/3![American Airlines logo]()
$572
This Southwest deal was found by Cheapflights users on 6/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:05 am
MKE
- SJO
1 stop7h 40m
Southwest
Tue 8/259:00 am
SJO
- MKE
2 stops10h 30m
Southwest
Deal found 6/6![Southwest logo]()
$616
This United Airlines deal was found by Cheapflights users on 6/5. 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 10/305:00 am
MKE
- LIR
2 stops11h 08m
United Airlines
Tue 11/178:35 am
LIR
- MKE
1 stop14h 11m
United Airlines
Deal found 6/5![United Airlines logo]()
$621
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:55 am
MKE
- SJO
1 stop7h 01m
Delta
Thu 9/241:25 pm
SJO
- MKE
1 stop9h 27m
Delta
Deal found 6/5![Delta logo]()
$580
This Southwest deal was found by Cheapflights users on 6/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:15 pm
MKE
- SJO
2 stops18h 45m
Southwest
Fri 10/309:00 am
SJO
- MKE
1 stop12h 20m
Southwest
Deal found 6/5![Southwest logo]()
$625
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Fri 7/310:44 am
MKE
- SJO
1 stop11h 31m
United Airlines
Fri 7/1011:13 am
SJO
- MKE
1 stop10h 32m
United Airlines
Deal found 6/8![United Airlines logo]()
$656
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:03 pm
MKE
- LIR
2 stops18h 19m
American Airlines
Thu 7/302:15 pm
LIR
- MKE
2 stops16h 47m
American Airlines
Deal found 6/7![American Airlines logo]()
$683
This Southwest deal was found by Cheapflights users on 6/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:50 am
MKE
- SJO
1 stop7h 25m
Southwest
Sun 12/69:00 am
SJO
- MKE
2 stops13h 15m
Southwest
Deal found 6/7![Southwest logo]()
$646
This United Airlines deal was found by Cheapflights users on 6/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:36 pm
MKE
- SJO
1 stop18h 02m
United Airlines
Thu 10/17:55 am
SJO
- MKE
1 stop25h 05m
United Airlines
Deal found 6/4![United Airlines logo]()
$663
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:45 am
MKE
- LIR
1 stop7h 15m
Delta
Tue 11/172:05 pm
LIR
- MKE
1 stop9h 44m
Delta
Deal found 6/6![Delta logo]()
$676
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Wed 6/245:56 pm
MKE
- SJO
1 stop17h 15m
United Airlines
Sat 7/41:00 pm
SJO
- MKE
1 stop17h 00m
United Airlines
Deal found 6/3![United Airlines logo]()
$700
This United Airlines deal was found by Cheapflights users on 6/6. 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 7/73:11 pm
MKE
- SJO
2 stops20h 00m
United Airlines
Sun 7/1212:30 am
SJO
- MKE
1 stop8h 35m
United Airlines
Deal found 6/6![United Airlines logo]()
$705
This United Airlines deal was found by Cheapflights users on 6/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:00 am
MKE
- SJO
2 stops17h 15m
United Airlines
Sat 7/1112:30 am
SJO
- MKE
1 stop8h 35m
United Airlines
Deal found 6/4![United Airlines logo]()
$705
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Sat 7/258:50 am
MKE
- LIR
2 stops26h 00m
United Airlines
Tue 7/283:27 pm
LIR
- MKE
2 stops17h 26m
United Airlines
Deal found 6/3![United Airlines logo]()
$736
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Sat 7/2510:28 am
MKE
- LIR
2 stops24h 22m
United Airlines
Thu 7/303:27 pm
LIR
- MKE
2 stops14h 33m
United Airlines
Deal found 6/3![United Airlines logo]()
$736
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:52 pm
MKE
- LIR
2 stops21h 18m
United Airlines
Sat 10/34:30 pm
LIR
- MKE
1 stop17h 18m
United Airlines
Deal found 6/7![United Airlines logo]()
$771
Last-minute flights from Milwaukee to Costa RicaDiscover last-minute flight deals from Milwaukee to Costa Rica. Data last updated June 8, 2026 and is based on user searches.
Discover last-minute flight deals from Milwaukee to Costa Rica. Data last updated June 8, 2026 and is based on user searches.
This Faresmojo deal was found by Cheapflights users on 6/4. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2710:28 am
MKE
- SJO
2 stops12h 15m
Multiple Airlines
Sun 8/24:08 am
SJO
- MKE
2 stops13h 40m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$646
This United Airlines deal was found by Cheapflights users on 6/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/310:44 am
MKE
- SJO
1 stop11h 31m
United Airlines
Wed 7/87:55 am
SJO
- MKE
2 stops10h 31m
United Airlines
Deal found 6/4![United Airlines logo]()
$608
This United Airlines deal was found by Cheapflights users on 6/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/310:44 am
MKE
- SJO
1 stop11h 31m
United Airlines
Tue 7/77:55 am
SJO
- MKE
2 stops10h 31m
United Airlines
Deal found 6/4![United Airlines logo]()
$621
This American Airlines deal was found by Cheapflights users on 6/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:21 am
MKE
- LIR
1 stop8h 19m
American Airlines
Fri 7/172:15 pm
LIR
- MKE
1 stop8h 19m
American Airlines
Deal found 6/3![American Airlines logo]()
$682
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:55 pm
MKE
- LIR
2 stops19h 20m
American Airlines
Wed 7/292:47 pm
LIR
- MKE
2 stops20h 58m
American Airlines
Deal found 6/7![American Airlines logo]()
$662
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:03 pm
MKE
- LIR
2 stops18h 19m
American Airlines
Thu 7/303:40 pm
LIR
- MKE
1 stop18h 37m
American Airlines
Deal found 6/7![American Airlines logo]()
$611
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:21 am
MKE
- SJO
1 stop16h 17m
American Airlines
Thu 7/3011:41 pm
SJO
- MKE
1 stop10h 36m
American Airlines
Deal found 6/4![American Airlines logo]()
$580
This American Airlines deal was found by Cheapflights users on 6/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/255:58 pm
MKE
- LIR
2 stops20h 17m
American Airlines
Thu 7/303:40 pm
LIR
- MKE
1 stop18h 37m
American Airlines
Deal found 6/3![American Airlines logo]()
$711
This American Airlines deal was found by Cheapflights users on 6/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:03 pm
MKE
- SJO
2 stops18h 47m
American Airlines
Tue 8/43:37 pm
SJO
- MKE
2 stops19h 00m
American Airlines
Deal found 6/3![American Airlines logo]()
$619
One-way flights from Milwaukee to Costa RicaSearch for one-way flight options from Milwaukee to Costa Rica. Find affordable one-way fares based on user searches. Data last updated June 8, 2026.
Search for one-way flight options from Milwaukee to Costa Rica. Find affordable one-way fares based on user searches. Data last updated June 8, 2026.
This Delta deal was found by Cheapflights users on 6/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:55 am
MKE
- SJO
1 stop7h 01m
Delta
Deal found 6/4![Delta logo]()
$234
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:28 am
MKE
- SJO
2 stops14h 24m
American Airlines
Deal found 6/4![American Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 6/5. 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.
Tue 9/88:43 am
MKE
- SJO
1 stop31h 28m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$255
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:30 am
MKE
- SJO
1 stop7h 24m
Delta
Deal found 6/5![Delta logo]()
$265
This American Airlines deal was found by Cheapflights users on 6/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:12 am
MKE
- LIR
1 stop8h 33m
American Airlines
Deal found 6/5![American Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:45 am
MKE
- LIR
1 stop7h 15m
Delta
Deal found 6/5![Delta logo]()
$282
This American Airlines deal was found by Cheapflights users on 6/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:48 pm
MKE
- LIR
2 stops19h 25m
American Airlines
Deal found 6/5![American Airlines logo]()
$283
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:21 pm
MKE
- LIR
2 stops18h 01m
American Airlines
Deal found 6/4![American Airlines logo]()
$302
This American Airlines deal was found by Cheapflights users on 6/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:49 pm
MKE
- LIR
2 stops21h 56m
American Airlines
Deal found 6/5![American Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:23 pm
MKE
- SJO
2 stops25h 14m
United Airlines
Deal found 6/7![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:45 am
MKE
- LIR
1 stop7h 15m
Delta
Deal found 6/6![Delta logo]()
$342
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:21 am
MKE
- SJO
1 stop16h 17m
American Airlines
Deal found 6/4![American Airlines logo]()
$343
Find flight deals from Milwaukee to Costa Rica
Keep the following information in mind while searching for Milwaukee to Costa Rica flight deals. Data was last updated June 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $510 (Delta) |
One-way from | $234 (Delta) |
Popular in | December |
Cheapest in | May |
Average price | $677 |
Cheapflights Fare Finder
Customize your flight search to find flights from Milwaukee to Costa Rica 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 June 8, 2026.
Use the filters below to find and compare flights from Milwaukee to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MilwaukeeLiberia
MKE - LIR
MKELIR
Milwaukee-Mitchell
Thu 8/27
5:34 am-12:00 pm
1 stop7h 26m
Liberia
Thu 9/3
1:25 pm-11:53 pm
1 stop9h 28m
$567
MilwaukeeLiberia
MKE - LIR
MKELIR
Milwaukee-Mitchell
Sat 8/29
6:48 pm-11:27 am
2 stops17h 39m
Liberia
Sat 9/5
2:45 pm-12:10 pm
2 stops20h 25m
$572
Quickest round-trip
MilwaukeeSan José
MKE - SJO
MKESJO
Milwaukee-Mitchell
Wed 9/9
5:55 am-11:56 am
1 stop7h 01m
San José Juan Santamaria Intl
Thu 9/24
1:25 pm-11:52 pm
1 stop9h 27m
$580
MilwaukeeSan José
MKE - SJO
MKESJO
Milwaukee-Mitchell
Tue 8/18
6:05 am-12:45 pm
1 stop7h 40m
San José Juan Santamaria Intl
Tue 8/25
9:00 am-8:30 pm
2 stops10h 30m
$616
MilwaukeeLiberia
MKE - LIR
MKELIR
Milwaukee-Mitchell
Fri 10/30
5:00 am-3:08 pm
2 stops11h 08m
Liberia
Tue 11/17
8:35 am-10:46 pm
1 stop14h 11m
$621
MilwaukeeSan José
MKE - SJO
MKESJO
Milwaukee-Mitchell
Fri 10/23
12:15 pm-6:00 am
2 stops18h 45m
San José Juan Santamaria Intl
Fri 10/30
9:00 am-10:20 pm
1 stop12h 20m
$625
MilwaukeeSan José
MKE - SJO
MKESJO
Milwaukee-Mitchell
Wed 12/2
5:50 am-1:15 pm
1 stop7h 25m
San José Juan Santamaria Intl
Sun 12/6
9:00 am-10:15 pm
2 stops13h 15m
$646
MilwaukeeSan José
MKE - SJO
MKESJO
Milwaukee-Mitchell
Fri 7/3
10:44 am-9:15 pm
1 stop11h 31m
San José Juan Santamaria Intl
Fri 7/10
11:13 am-10:45 pm
1 stop10h 32m
$656
MilwaukeeSan José
MKE - SJO
MKESJO
Milwaukee-Mitchell
Mon 9/28
6:36 pm-11:38 am
1 stop18h 02m
San José Juan Santamaria Intl
Thu 10/1
7:55 am-10:00 am
1 stop25h 05m
$663
MilwaukeeLiberia
MKE - LIR
MKELIR
Milwaukee-Mitchell
Fri 10/30
5:45 am-12:00 pm
1 stop7h 15m
Liberia
Tue 11/17
2:05 pm-11:49 pm
1 stop9h 44m
$676
Showing 1-10 of 30 resultsSorted by cheapest first
Best time to book a flight from Milwaukee to Costa Rica
Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Milwaukee with our price prediction graph.
MKE-SJO
MKE-LIR
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 Milwaukee to Costa Rica
MKE-CR0
MKE-SJO
MKE-LIR
What is the cheapest month to book a flight from Milwaukee to Costa Rica?
Currently, February is the cheapest month in which you can book a flight from Milwaukee to Costa Rica (average of $193). Flying from Milwaukee to Costa Rica in October is currently the most expensive (average of $728). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Milwaukee to Costa Rica?
The best time to book flights from Milwaukee to Costa Rica is 31 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Costa Rica
Get insights into the airlines that provide service to Costa Rica. 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 Costa Rica. Reviews last updated June 8, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Milwaukee to Costa Rica. 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.
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Milwaukee to Costa Rica. 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 Milwaukee to Costa Rica
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Complete your trip
Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Milwaukee to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Milwaukee and Costa Rica flights
Browse other Milwaukee and Costa Rica flight options. Last updated on June 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Milwaukee to Costa Rica
Discover the top 4 airlines that operate flights from Milwaukee to Costa Rica. 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 June 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$206 | Average$640 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$318 | Average$710 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$386 | Average$663 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$426 | Average$707 | FlexibilityNo cancel fee | On-time63% |