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 6 days ago
$199
Roundtrip
found 6 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 6 days ago
Sun, Nov 9 - Sun, Nov 16
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$208 Roundtrip, found 6 days ago
$208
Roundtrip
found 6 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 6 days ago
Fri, Oct 31 - Wed, Nov 5
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$214 Roundtrip, found 2 days ago
$214
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Pearson Intl., returning Wed, Nov 5, priced at $214 found 2 days ago
Sat, Oct 4 - Mon, Oct 6
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$229 Roundtrip, found 18 hours ago
$229
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Oct 4 from O'Hare Intl. to Pearson Intl., returning Mon, Oct 6, priced at $229 found 18 hours ago
Thu, Nov 6 - Sun, Nov 9
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$234 Roundtrip, found 6 hours ago
$234
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Nov 6 from O'Hare Intl. to Pearson Intl., returning Sun, Nov 9, priced at $234 found 6 hours ago
Thu, Nov 6 - Sun, Nov 9
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$242 Roundtrip, found 6 hours ago
$242
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Nov 6 from O'Hare Intl. to Pearson Intl., returning Sun, Nov 9, priced at $242 found 6 hours ago
Thu, Nov 6 - Sun, Nov 9
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$264 Roundtrip, found 6 hours ago
$264
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Nov 6 from O'Hare Intl. to Pearson Intl., returning Sun, Nov 9, priced at $264 found 6 hours ago
Thu, Nov 6 - Sun, Nov 9
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$278 Roundtrip, found 6 hours ago
$278
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Nov 6 from O'Hare Intl. to Pearson Intl., returning Sun, Nov 9, priced at $278 found 6 hours ago
Sat, Oct 4 - Mon, Oct 6
ORD
O'Hare Intl.
YYZ
Pearson Intl.
$280 Roundtrip, found 18 hours ago
$280
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Oct 4 from O'Hare Intl. to Pearson Intl., returning Mon, Oct 6, priced at $280 found 18 hours ago