United Flight AC3400 Deals & Information (2025/2026)

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United Flight 3400 Route Deals From $91

The cheapest prices found with in the last 7 days for return flights were $197 and $91 for one-way flights to Pearson Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 3 - Fri, Jun 6
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jun 3 from Newark Liberty Intl. Airport to Pearson Intl., returning Fri, Jun 6, priced at $197 found 2 days ago
Tue, Jun 3 - Fri, Jun 6
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$207 Roundtrip, found 2 days ago
$207
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jun 3 from Newark Liberty Intl. Airport to Pearson Intl., returning Fri, Jun 6, priced at $207 found 2 days ago
Fri, Jun 27 - Mon, Jun 30
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$232 Roundtrip, just found
$232
Roundtrip
just found
Select United flight, departing Fri, Jun 27 from Newark Liberty Intl. Airport to Pearson Intl., returning Mon, Jun 30, priced at $232 just found
Sat, May 10 - Sun, May 11
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$237 Roundtrip, found 5 days ago
$237
Roundtrip
found 5 days ago
Select United flight, departing Sat, May 10 from Newark Liberty Intl. Airport to Pearson Intl., returning Sun, May 11, priced at $237 found 5 days ago
Sat, Jun 21 - Tue, Jun 24
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$240 Roundtrip, found 21 hours ago
$240
Roundtrip
found 21 hours ago
Select United flight, departing Sat, Jun 21 from Newark Liberty Intl. Airport to Pearson Intl., returning Tue, Jun 24, priced at $240 found 21 hours ago

Frequently asked questions

What route does flight number UA3400 take?
UA3400 flies direct from Bradley Intl. Airport (BDL) to ORD in roughly 2 hours and 35 minutes. It can be used on other routes though, some of which could be multi-stop flights. Keep this in mind when booking your airfare to avoid any confusion.
What kind of plane is on flight number UA3400?
If you’re considering booking flight UA3400 from Hartford, CT Airport (BDL-Bradley Intl.) to O’Hare Airport, you’re likely to be jetting off on the Embraer 175. This flight number serves several routes, but this is the most popular.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA3400 flight with Travelocity, please visit our Customer Service Portal.