United Flight 3400 Deals & Information (2025/2026)

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United Flight 3400 Route Deals From $156

The cheapest prices found with in the last 7 days for return flights were $248 and $156 for one-way flights to Pearson Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 17 - Sun, Oct 26
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$248 Roundtrip, found 11 hours ago
$248
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Oct 17 from Newark Liberty Intl. Airport to Pearson Intl., returning Sun, Oct 26, priced at $248 found 11 hours ago
Thu, Oct 23 - Sun, Oct 26
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$257 Roundtrip, found 12 hours ago
$257
Roundtrip
found 12 hours ago
Select United flight, departing Thu, Oct 23 from Newark Liberty Intl. Airport to Pearson Intl., returning Sun, Oct 26, priced at $257 found 12 hours ago
Fri, Aug 22 - Thu, Aug 28
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$285 Roundtrip, found 16 hours ago
$285
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Aug 22 from Newark Liberty Intl. Airport to Pearson Intl., returning Thu, Aug 28, priced at $285 found 16 hours ago
Fri, Sep 12 - Sat, Sep 13
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$304 Roundtrip, found 3 hours ago
$304
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Sep 12 from Newark Liberty Intl. Airport to Pearson Intl., returning Sat, Sep 13, priced at $304 found 3 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.