Boston (BOS) to Osaka (KIX) flight deal in economy from $538
$1,135 USD
-53%$538 USD
Verified about 9 hours agoAugust 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Limited Availability
16% of dates checked are available within 10% of the lowest price
Saturday, August 1st, 2026
Outbound Flights
29h 23m·1 stop
$538 USD
BOSAug 1 20:27
→SFOAug 1 23:59
UA 2107Boeing 737MAX 9 Passenger
11h 11m layover·Overnight
SFOAug 2 11:10
→KIXAug 3 14:50
UA 35Boeing 777
19h 50m·1 stop
$588 USDBOSAug 1 06:00
→SFOAug 1 09:27
UA 2441Boeing 737MAX 9 Passenger
1h 43m layover
SFOAug 1 11:10
→KIXAug 2 14:50
UA 35Boeing 777
29h 11m·2 stops
$921 USDBOSAug 1 20:39
→DENAug 1 23:26
UA 2433Boeing 737
5h 49m layover·Overnight
DENAug 2 05:15
→SFOAug 2 06:53
UA 2367Boeing 737MAX 9 Passenger
4h 17m layover
SFOAug 2 11:10
→KIXAug 3 14:50
UA 35Boeing 777
29h 11m·2 stops
$921 USDBOSAug 1 20:39
→DENAug 1 23:26
UA 2433Boeing 737
6h 34m layover·Overnight
DENAug 2 06:00
→SFOAug 2 07:38
UA 1301Boeing 737
3h 32m layover
SFOAug 2 11:10
→KIXAug 3 14:50
UA 35Boeing 777
29h 11m·2 stops
$921 USDBOSAug 1 20:39
→DENAug 1 23:26
UA 2433Boeing 737
8h 14m layover·Overnight
DENAug 2 07:40
→SFOAug 2 09:18
UA 2391Boeing 757
1h 52m layover
SFOAug 2 11:10
→KIXAug 3 14:50
UA 35Boeing 777