United flights from Billings to Boston from $ 361* or from $/mo

Featured daily fares for flights from Billings (BIL) to Boston (BOS)

$ 361
$ 760
Displaying fares for May-2025
12

Mo

MAY

13

Tu

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We

15

Th

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Fr

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Sa

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27

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28

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30

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31

Sa

01

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JUN

02

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11

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Range$ 361-$ 760

More United deals on Billings (BIL) to Boston (BOS) flights

$
More United deals on Billings (BIL) to Boston (BOS) flights
From
To
Fare Type
Dates
Price
Billings (BIL)Boston (BOS)Roundtrip
|
Economy
06/07/25 - 06/11/25

from

$ 361
or from $/mo

Viewed: 10 hours ago

Billings (BIL)Boston (BOS)Roundtrip
|
Economy
06/04/25 - 06/11/25

from

$ 361
or from $/mo

Viewed: 10 hours ago

Billings (BIL)Boston (BOS)Roundtrip
|
Economy
06/04/25 - 06/07/25

from

$ 361
or from $/mo

Viewed: 10 hours ago

Billings (BIL)Boston (BOS)Roundtrip
|
Economy
06/07/25 - 06/10/25

from

$ 361
or from $/mo

Viewed: 10 hours ago

Billings (BIL)Boston (BOS)Roundtrip
|
Economy
06/03/25 - 06/07/25

from

$ 361
or from $/mo

Viewed: 10 hours ago

Billings (BIL)Boston (BOS)Roundtrip
|
Economy
06/03/25 - 06/10/25

from

$ 361
or from $/mo

Viewed: 10 hours ago

Billings (BIL)Boston (BOS)Roundtrip
|
Economy
09/29/25 - 10/11/25

from

$ 363
or from $/mo

Viewed: 3 hours ago

Billings (BIL)Boston (BOS)Roundtrip
|
Economy
09/29/25 - 10/13/25

from

$ 379
or from $/mo

Viewed: 3 hours ago

Billings (BIL)Boston (BOS)Roundtrip
|
Economy
06/10/25 - 06/17/25

from

$ 388
or from $/mo

Viewed: 10 hours ago

Billings (BIL)Boston (BOS)Roundtrip
|
Economy
06/06/25 - 06/10/25

from

$ 390
or from $/mo

Viewed: 10 hours ago

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.