United Flight 3400 Deals & Information (2026/2027)

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United Flight 3400 Route Deals From $155

The cheapest prices found with in the last 7 days for return flights were $263 and $155 for one-way flights to Pearson Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, May 27 - Mon, Jun 15
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$263 Roundtrip, just found
$263
Roundtrip
just found
Select United flight, departing Wed, May 27 from Newark Liberty Intl. Airport to Pearson Intl., returning Mon, Jun 15, priced at $263 just found
Mon, May 4 - Fri, May 8
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$268 Roundtrip, found 2 hours ago
$268
Roundtrip
found 2 hours ago
Select United flight, departing Mon, May 4 from Newark Liberty Intl. Airport to Pearson Intl., returning Fri, May 8, priced at $268 found 2 hours ago
Wed, May 27 - Mon, Jun 15
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$273 Roundtrip, just found
$273
Roundtrip
just found
Select United flight, departing Wed, May 27 from Newark Liberty Intl. Airport to Pearson Intl., returning Mon, Jun 15, priced at $273 just found
Mon, May 4 - Fri, May 8
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$278 Roundtrip, found 2 hours ago
$278
Roundtrip
found 2 hours ago
Select United flight, departing Mon, May 4 from Newark Liberty Intl. Airport to Pearson Intl., returning Fri, May 8, priced at $278 found 2 hours ago
Sun, May 24 - Mon, Jun 15
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$301 Roundtrip, just found
$301
Roundtrip
just found
Select United flight, departing Sun, May 24 from Newark Liberty Intl. Airport to Pearson Intl., returning Mon, Jun 15, priced at $301 just found
Sun, May 24 - Mon, Jun 15
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$309 Roundtrip, just found
$309
Roundtrip
just found
Select United flight, departing Sun, May 24 from Newark Liberty Intl. Airport to Pearson Intl., returning Mon, Jun 15, priced at $309 just found
Mon, May 4 - Fri, May 8
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$312 Roundtrip, found 2 hours ago
$312
Roundtrip
found 2 hours ago
Select United flight, departing Mon, May 4 from Newark Liberty Intl. Airport to Pearson Intl., returning Fri, May 8, priced at $312 found 2 hours ago
Wed, May 27 - Mon, Jun 15
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$318 Roundtrip, just found
$318
Roundtrip
just found
Select United flight, departing Wed, May 27 from Newark Liberty Intl. Airport to Pearson Intl., returning Mon, Jun 15, priced at $318 just found
Sun, May 24 - Mon, Jun 15
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$321 Roundtrip, just found
$321
Roundtrip
just found
Select United flight, departing Sun, May 24 from Newark Liberty Intl. Airport to Pearson Intl., returning Mon, Jun 15, priced at $321 just found

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.