American Airlines Flight AC3456 Deals & Information (2025/2026)

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American Airlines Flight 3456 Route Deals From $85

The cheapest prices found with in the last 7 days for return flights were $199 and $85 for one-way flights to Pearson Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Nov 9 - Sun, Nov 16
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$199 Roundtrip, found 4 days ago
$199
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Nov 9 from O'Hare Intl. to Pearson Intl., returning Sun, Nov 16, priced at $199 found 4 days ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$204 Roundtrip, found 7 hours ago
$204
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $204 found 7 hours ago
Mon, Sep 29 - Fri, Oct 3
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$207 Roundtrip, found 1 day ago
$207
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Sep 29 from O'Hare Intl. to Pearson Intl., returning Fri, Oct 3, priced at $207 found 1 day ago
Sun, Nov 9 - Sun, Nov 16
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$208 Roundtrip, found 4 days ago
$208
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Nov 9 from O'Hare Intl. to Pearson Intl., returning Sun, Nov 16, priced at $208 found 4 days ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$214 Roundtrip, found 7 hours ago
$214
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $214 found 7 hours ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$229 Roundtrip, found 7 hours ago
$229
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $229 found 7 hours ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$235 Roundtrip, found 7 hours ago
$235
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $235 found 7 hours ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$243 Roundtrip, found 7 hours ago
$243
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $243 found 7 hours ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$252 Roundtrip, found 7 hours ago
$252
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $252 found 7 hours ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$265 Roundtrip, found 7 hours ago
$265
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $265 found 7 hours ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$278 Roundtrip, found 7 hours ago
$278
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $278 found 7 hours ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$288 Roundtrip, found 7 hours ago
$288
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $288 found 7 hours ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$294 Roundtrip, found 7 hours ago
$294
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $294 found 7 hours ago