
Popular airlines from Portland to Montclair
- Alaska Airlines
Alaska Airlines
- Southwest Airlines
Southwest Airlines
- United
United
- Delta
Delta
- American Airlines
American Airlines
- Frontier Airlines
Frontier Airlines
- Hawaiian Airlines
Hawaiian Airlines
- Plan, book, fly with confidence
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Cheap Flights from Portland to Montclair (PDX-QLA)
Prices were available within the past 7 days and start at $57 for one-way flights and $109 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 17 - Fri, Oct 24
PDX
Portland
ONT
Ontario
$109 Roundtrip, found 14 hours ago
$109
Roundtrip
found 14 hours ago

Tue, Oct 7 - Sat, Oct 11
PDX
Portland
SNA
Orange County
$110 Roundtrip, found 5 hours ago
$110
Roundtrip
found 5 hours ago

Tue, Sep 9 - Tue, Sep 16
PDX
Portland
SNA
Orange County
$116 Roundtrip, found 5 hours ago
$116
Roundtrip
found 5 hours ago

Sat, Nov 22 - Tue, Dec 9
PDX
Portland
ONT
Ontario
$137 Roundtrip, found 4 days ago
$137
Roundtrip
found 4 days ago

Wed, Nov 5 - Sat, Nov 8
PDX
Portland
LGB
Long Beach
$143 Roundtrip, found 3 days ago
$143
Roundtrip
found 3 days ago

Sat, Sep 6 - Sat, Sep 20
PDX
Portland
ONT
Ontario
$159 Roundtrip, just found
$159
Roundtrip
just found
Find the cheapest month to fly from Portland (PDX) to Ontario (ONT)
September is typically the cheapest month to fly
From $48 - $151 per traveler.
Graph displaying average flight prices per month
Alternative airports near Montclair
Prices were available within the past 7 days. Prices and availability are subject to change.
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