United Flight AC8539 Deals & Information (2025/2026)

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United Flight 8539 Route Deals From $111

The cheapest prices found with in the last 7 days for return flights were $258 and $111 for one-way flights to Pearson Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 12 - Fri, Aug 22
BOS
Logan Intl.
YYZ
Pearson Intl.
$258 Roundtrip, found 1 hour ago
$258
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 12 from Logan Intl. to Pearson Intl., returning Fri, Aug 22, priced at $258 found 1 hour ago
Tue, Aug 12 - Fri, Aug 22
BOS
Logan Intl.
YYZ
Pearson Intl.
$267 Roundtrip, found 1 hour ago
$267
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 12 from Logan Intl. to Pearson Intl., returning Fri, Aug 22, priced at $267 found 1 hour ago
Sat, May 3 - Wed, May 28
BOS
Logan Intl.
YYZ
Pearson Intl.
$277 Roundtrip, found 5 days ago
$277
Roundtrip
found 5 days ago
Select United flight, departing Sat, May 3 from Logan Intl. to Pearson Intl., returning Wed, May 28, priced at $277 found 5 days ago
Tue, Aug 12 - Fri, Aug 22
BOS
Logan Intl.
YYZ
Pearson Intl.
$279 Roundtrip, found 1 hour ago
$279
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 12 from Logan Intl. to Pearson Intl., returning Fri, Aug 22, priced at $279 found 1 hour ago
Tue, May 20 - Sat, May 24
BOS
Logan Intl.
YYZ
Pearson Intl.
$283 Roundtrip, found 5 days ago
$283
Roundtrip
found 5 days ago
Select United flight, departing Tue, May 20 from Logan Intl. to Pearson Intl., returning Sat, May 24, priced at $283 found 5 days ago
Tue, Aug 12 - Fri, Aug 22
BOS
Logan Intl.
YYZ
Pearson Intl.
$289 Roundtrip, found 1 hour ago
$289
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 12 from Logan Intl. to Pearson Intl., returning Fri, Aug 22, priced at $289 found 1 hour ago
Tue, Aug 12 - Fri, Aug 22
BOS
Logan Intl.
YYZ
Pearson Intl.
$296 Roundtrip, found 1 hour ago
$296
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 12 from Logan Intl. to Pearson Intl., returning Fri, Aug 22, priced at $296 found 1 hour ago
Wed, Jun 25 - Sat, Jun 28
BOS
Logan Intl.
YYZ
Pearson Intl.
$298 Roundtrip, found 22 hours ago
$298
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Jun 25 from Logan Intl. to Pearson Intl., returning Sat, Jun 28, priced at $298 found 22 hours ago
Tue, Aug 12 - Fri, Aug 22
BOS
Logan Intl.
YYZ
Pearson Intl.
$300 Roundtrip, found 1 hour ago
$300
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 12 from Logan Intl. to Pearson Intl., returning Fri, Aug 22, priced at $300 found 1 hour ago