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Ontario to Portland International flight ticket price

Compare live prices for ONT to PDX. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
ONT → PDX Approx. 1350.80 km 10 May 2026 Live inventory
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Showing 25 of 199 live flights
Delta Air Lines
DL-3762
16:57
05/10/2026
ONT
Ontario International Airport
6h 47m
1 Stop
⏱ SLC · 3h 1mSLC Airport
23:44
05/10/2026
PDX
Portland International Airport
₹10,630
per person
✕ Non-refundable
Delta Air Lines
DL-3816
06:45
05/10/2026
ONT
Ontario International Airport
4h 54m
1 Stop
⏱ SEA · 0h 46mSEA Airport
11:39
05/10/2026
PDX
Portland International Airport
₹10,630
per person
✕ Non-refundable
Delta Air Lines
DL-3840
13:35
05/10/2026
ONT
Ontario International Airport
5h 51m
1 Stop
⏱ SEA · 1h 50mSEA Airport
19:26
05/10/2026
PDX
Portland International Airport
₹10,630
per person
✕ Non-refundable
Delta Air Lines
DL-2582
07:00
05/10/2026
BUR
Ontario International Airport
5h 33m
1 Stop
⏱ SLC · 1h 35mSLC Airport
12:33
05/10/2026
PDX
Portland International Airport
₹11,570
per person
✕ Non-refundable
Delta Air Lines
DL-1302
09:50
05/10/2026
ONT
Ontario International Airport
6h 10m
1 Stop
⏱ SLC · 2h 28mSLC Airport
16:00
05/10/2026
PDX
Portland International Airport
₹12,602
per person
✕ Non-refundable
Southwest Airlines
WN-1988
20:05
05/10/2026
SNA
Ontario International Airport
4h 10m
1 Stop
⏱ OAK · 1h 0mOAK Airport
00:15
05/11/2026
+1
PDX
Portland International Airport
₹14,411
per person
✕ Non-refundable🔥 Last 5 seats9 fare options
Southwest Airlines
WN-4362
08:05
05/10/2026
SNA
Ontario International Airport
5h 30m
1 Stop
⏱ OAK · 2h 15mOAK Airport
13:35
05/10/2026
PDX
Portland International Airport
₹14,411
per person
✕ Non-refundable9 fare options
Delta Air Lines
DL-1006
13:29
05/10/2026
ONT
Ontario International Airport
4h 32m
1 Stop
⏱ SLC · 0h 52mSLC Airport
18:01
05/10/2026
PDX
Portland International Airport
₹14,478
per person
✕ Non-refundable
United Airlines
UA-1665
18:59
05/10/2026
ONT
Ontario International Airport
6h 0m
1 Stop
⏱ SFO · 2h 33mSFO Airport
00:59
05/11/2026
+1
PDX
Portland International Airport
₹14,855
per person
✕ Non-refundable5 fare options
United Airlines
UA-2363
06:00
05/10/2026
ONT
Ontario International Airport
6h 35m
1 Stop
⏱ SFO · 3h 11mSFO Airport
12:35
05/10/2026
PDX
Portland International Airport
₹14,867
per person
✓ Refundable4 fare options
United Airlines
UA-488
07:15
05/10/2026
BUR
Ontario International Airport
5h 20m
1 Stop
⏱ SFO · 1h 49mSFO Airport
12:35
05/10/2026
PDX
Portland International Airport
₹15,790
per person
✕ Non-refundable5 fare options
United Airlines
UA-488
07:15
05/10/2026
BUR
Ontario International Airport
6h 51m
1 Stop
⏱ SFO · 3h 19mSFO Airport
14:06
05/10/2026
PDX
Portland International Airport
₹15,790
per person
✕ Non-refundable5 fare options
United Airlines
UA-2647
06:00
05/10/2026
LAX
Ontario International Airport
6h 35m
1 Stop
⏱ SFO · 3h 5mSFO Airport
12:35
05/10/2026
PDX
Portland International Airport
₹15,802
per person
✓ Refundable4 fare options
Delta Air Lines
DL-2975
07:35
05/10/2026
LAX
Ontario International Airport
2h 22m
Non-stop
09:57
05/10/2026
PDX
Portland International Airport
₹15,809
per person
✕ Non-refundable
Southwest Airlines
WN-655
08:55
05/10/2026
LAX
Ontario International Airport
4h 40m
1 Stop
⏱ OAK · 1h 40mOAK Airport
13:35
05/10/2026
PDX
Portland International Airport
₹17,201
per person
✓ Refundable8 fare options
Southwest Airlines
WN-3590
20:05
05/10/2026
SNA
Ontario International Airport
5h 10m
1 Stop
⏱ LAS · 1h 40mLAS Airport
01:15
05/11/2026
+1
PDX
Portland International Airport
₹17,729
per person
✕ Non-refundable🔥 Last 1 seats4 fare options
Southwest Airlines
WN-2898
19:20
05/10/2026
LAX
Ontario International Airport
4h 10m
1 Stop
⏱ SJC · 1h 15mSJC Airport
23:30
05/10/2026
PDX
Portland International Airport
₹18,136
per person
✓ Refundable8 fare options
Southwest Airlines
WN-1120
11:15
05/10/2026
LAX
Ontario International Airport
4h 30m
1 Stop
⏱ SMF · 1h 35mSMF Airport
15:45
05/10/2026
PDX
Portland International Airport
₹18,136
per person
✓ Refundable🔥 Last 2 seats8 fare options
Southwest Airlines
WN-1413
17:10
05/10/2026
SNA
Ontario International Airport
8h 5m
1 Stop
⏱ LAS · 4h 30mLAS Airport
01:15
05/11/2026
+1
PDX
Portland International Airport
₹18,260
per person
✕ Non-refundable🔥 Last 1 seats4 fare options
alaskaairlines
AS-544
07:00
05/10/2026
ONT
Ontario International Airport
2h 24m
Non-stop
09:24
05/10/2026
PDX
Portland International Airport
₹18,293
per person
✕ Non-refundable3 fare options
Southwest Airlines
WN-2764
12:10
05/10/2026
ONT
Ontario International Airport
3h 35m
1 Stop
⏱ SMF · 0h 40mSMF Airport
15:45
05/10/2026
PDX
Portland International Airport
₹18,547
per person
✕ Non-refundable🔥 Last 5 seats9 fare options
United Airlines
UA-1851
10:37
05/10/2026
ONT
Ontario International Airport
5h 56m
1 Stop
⏱ SFO · 2h 18mSFO Airport
16:33
05/10/2026
PDX
Portland International Airport
₹18,606
per person
✕ Non-refundable🔥 Last 4 seats5 fare options
Southwest Airlines
WN-4408
09:55
05/10/2026
SNA
Ontario International Airport
5h 50m
1 Stop
⏱ SMF · 2h 50mSMF Airport
15:45
05/10/2026
PDX
Portland International Airport
₹18,677
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-4410
16:15
05/10/2026
SNA
Ontario International Airport
5h 55m
1 Stop
⏱ SMF · 2h 50mSMF Airport
22:10
05/10/2026
PDX
Portland International Airport
₹18,677
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-4397
08:10
05/10/2026
SNA
Ontario International Airport
5h 55m
1 Stop
⏱ PHX · 1h 55mPHX Airport
14:05
05/10/2026
PDX
Portland International Airport
₹18,677
per person
✕ Non-refundable🔥 Last 3 seats9 fare options
😕 No flights match your filters.
Ontario (ONT)
📍 Ontario International Airport
🌍 United States
🕐 GMT -8
📐 Latitude: 34.055999755859375
📐 Longitude: -117.60099792480469
Portland International (PDX)
📍 Portland International Airport
🌍 United States
🕐 GMT -8
📐 Latitude: 45.58869934
📐 Longitude: -122.5979996

✈ Distance: Ontario,USA to Portland International,USA1350.80 km

📅 Results on this page are loaded for 10 May 2026. Click View all flights for the complete live search.

Ontario to Portland International — what to expect when booking

The ONT–PDX route is served by multiple carriers throughout the year. Fares on this route can move quickly — a price available now may not be there 30 minutes later.

If your dates are flexible, try shifting your departure by a day or two using the date strip above. Mid-week departures often show lower base fares compared to weekend starts on many routes.

The distance between Ontario,USA and Portland International,USA is approximately 1350.80 km.

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More flights from Ontario (ONT)
14 routes
More flights from Portland International (PDX)
55 routes
Portland International Albuquerque
PDX → ABQ
Portland International Amsterdam
PDX → AMS
Portland International Anchorage
PDX → ANC
Portland International Atlanta
PDX → ATL
Portland International Bellingham
PDX → BLI
Portland International Billings
PDX → BIL
Portland International Boise
PDX → BOI
Portland International Boston
PDX → BOS
Portland International Burbank
PDX → BUR
Portland International Calgary
PDX → YYC
Portland International Charlotte
PDX → CLT
Portland International Chicago
PDX → ORD
Portland International Denver
PDX → DEN
Portland International Detroit
PDX → DTW
Portland International Eugene
PDX → EUG
Portland International Fort Worth
PDX → DFW
Portland International Fresno
PDX → FAT
Portland International Honolulu
PDX → HNL
Portland International Houston
PDX → IAH
Portland International Kahului
PDX → OGG
Portland International Kansas City
PDX → MCI
Portland International Klamath Fall
PDX → LMT
Portland International Las Vegas
PDX → LAS
Portland International Long Beach
PDX → LGB
Portland International Los Angeles
PDX → LAX
Portland International Medford
PDX → MFR
Portland International Minneapolis
PDX → MSP
Portland International Missula
PDX → MSO
Portland International New York
PDX → JFK
Portland International North Bend
PDX → OTH
Portland International Oakland
PDX → OAK
Portland International Oklahoma City
PDX → OKC
Portland International Ontario
PDX → ONT
Portland International Palm Springs
PDX → PSP
Portland International Pasco
PDX → PSC
Portland International Pendelton
PDX → PDT
Portland International Philadelphia
PDX → PHL
Portland International Phoenix
PDX → PHX
Portland International Redmond
PDX → RDM
Portland International Reno
PDX → RNO
Portland International Sacramento
PDX → SMF
Portland International Salt Lake City
PDX → SLC
Portland International San Diego
PDX → SAN
Portland International San Francisco
PDX → SFO
Portland International San Jose
PDX → SJC
Portland International Santa Ana
PDX → SNA
Portland International Santa Barbara
PDX → SBA
Portland International Santa Rosa
PDX → STS
Portland International Seattle
PDX → SEA
Portland International Spokane
PDX → GEG
Portland International Tampa
PDX → TPA
Portland International Tokyo
PDX → NRT
Portland International Tucson
PDX → TUS
Portland International Vancouver
PDX → YVR
Portland International Washington DC
PDX → IAD
❓ Frequently asked questions — Ontario to Portland International flights

Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.

The straight-line distance between Ontario,USA (ONT) and Portland International,USA (PDX) is approximately 1350.80 km. Actual flying distance may vary slightly depending on routing.

Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.

Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.