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Route overview: Portland to Ontario (ONT) flight deals

Portland → Ontario

Dec 12, 2026 · return Dec 20, 2026

PDX → ONT1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Sat, Dec 12 – Sun, Dec 20

Frontier Airlines
12:52 pmPDX
2h 26m
Nonstop
3:18 pmONT
Frontier Airlines
9:25 amONT
2h 32m
Nonstop
11:57 amPDX

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Sun, Dec 20

Alaska Airlines
7:30 amPDX
2h 22m
Nonstop
9:52 amONT
Alaska Airlines
10:40 amONT
2h 25m
Nonstop
1:05 pmPDX

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Sun, Dec 20

Alaska Airlines
5:40 pmPDX
2h 26m
Nonstop
8:06 pmONT
Alaska Airlines
10:40 amONT
2h 25m
Nonstop
1:05 pmPDX

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Dec 12 – Sun, Dec 20

American Airlines
2:04 pmPDX
5h 17m
PHX · 1h 20m
7:21 pmONT
Frontier Airlines
9:25 amONT
2h 32m
Nonstop
11:57 amPDX

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Sun, Dec 20

Southwest Airlines
6:00 amPDX
4h 40m
LAS · 1h 25m
10:40 amONT
Southwest Airlines
3:05 pmONT
4h 15m
SJC · 1h 5m
7:20 pmPDX

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Sun, Dec 20

Frontier Airlines
12:51 pmPDX
5h 40m
LAS · 2h 21m
6:31 pmONT
Frontier Airlines
9:25 amONT
2h 32m
Nonstop
11:57 amPDX

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Sun, Dec 20

Alaska Airlines
5:30 amPDX
5h 48m
SEA · 2h 3m
11:18 amONT
Alaska Airlines
10:40 amONT
2h 25m
Nonstop
1:05 pmPDX

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Sun, Dec 20

Southwest Airlines
11:20 amPDX
4h 55m
OAK · 1h 55m
4:15 pmONT
Southwest Airlines
3:05 pmONT
4h 15m
SJC · 1h 5m
7:20 pmPDX

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Sun, Dec 20

Southwest Airlines
7:30 amPDX
5h 10m
SJC · 2h
12:40 pmONT
Southwest Airlines
3:05 pmONT
4h 15m
SJC · 1h 5m
7:20 pmPDX

Round-trip total · 1 adult · Taxes included

Make this trip yours

PDX ⇄ ONT

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeDec 11, 2026 → Dec 19, 2026Dec 13, 2026 → Dec 21, 2026
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Portland to Ontario (ONT) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-12 → 2026-12-20Frontier AirlinesF92914 / F92913$170.202026-10-29T01:55:18Z
2026-12-12 → 2026-12-20Alaska AirlinesAS3312 / AS3312$296.702026-10-29T01:55:18Z
2026-12-12 → 2026-12-20American Airlines / Frontier AirlinesAA2660 + AA1666 / F92913$245.202026-10-29T01:55:18Z
2026-12-12 → 2026-12-20Southwest AirlinesWN2101 + WN2401 / WN174 + WN930$319.702026-10-29T01:55:18Z
2026-12-12 → 2026-12-20Alaska AirlinesAS2256 / AS3312$296.702026-10-29T01:55:18Z
2026-12-12 → 2026-12-20Frontier AirlinesF91106 + F91923 / F92913$200.202026-10-29T01:55:18Z
2026-12-12 → 2026-12-20Alaska AirlinesAS427 + AS575 / AS3312$306.702026-10-29T01:55:18Z
2026-12-12 → 2026-12-20Southwest AirlinesWN1593 + WN1053 / WN174 + WN930$319.702026-10-29T01:55:18Z
2026-12-12 → 2026-12-20Southwest AirlinesWN510 + WN1383 / WN174 + WN930$319.702026-10-29T01:55:18Z

2026-12-12 → 2026-12-20 · $170.20

  • Frontier Airlines F92914: PDX 2026-12-12 12:52:00 → ONT 2026-12-12 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-20 09:25:00 → PDX 2026-12-20 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-12 → 2026-12-20 · $296.70

  • Alaska Airlines AS3312: PDX 2026-12-12 07:30:00 → ONT 2026-12-12 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-20 10:40:00 → PDX 2026-12-20 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-12 → 2026-12-20 · $245.20

  • American Airlines AA2660 / AA1666: PDX 2026-12-12 14:04:00 → ONT 2026-12-12 19:21:00; 1 stop(s) via PHX; 317 minutes. Local airport times.
    • AA2660: PDX 2026-12-12 14:04:00 → PHX 2026-12-12 17:38:00; layover at PHX: 80 minutes.
    • AA1666: PHX 2026-12-12 18:58:00 → ONT 2026-12-12 19:21:00.
  • Frontier Airlines F92913: ONT 2026-12-20 09:25:00 → PDX 2026-12-20 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-12 → 2026-12-20 · $319.70

  • Southwest Airlines WN2101 / WN2401: PDX 2026-12-12 06:00:00 → ONT 2026-12-12 10:40:00; 1 stop(s) via LAS; 280 minutes. Local airport times.
    • WN2101: PDX 2026-12-12 06:00:00 → LAS 2026-12-12 08:10:00; layover at LAS: 85 minutes.
    • WN2401: LAS 2026-12-12 09:35:00 → ONT 2026-12-12 10:40:00.
  • Southwest Airlines WN174 / WN930: ONT 2026-12-20 15:05:00 → PDX 2026-12-20 19:20:00; 1 stop(s) via SJC; 255 minutes. Local airport times.
    • WN174: ONT 2026-12-20 15:05:00 → SJC 2026-12-20 16:20:00; layover at SJC: 65 minutes.
    • WN930: SJC 2026-12-20 17:25:00 → PDX 2026-12-20 19:20:00.

2026-12-12 → 2026-12-20 · $296.70

  • Alaska Airlines AS2256: PDX 2026-12-12 17:40:00 → ONT 2026-12-12 20:06:00; nonstop; 146 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-20 10:40:00 → PDX 2026-12-20 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-12 → 2026-12-20 · $200.20

  • Frontier Airlines F91106 / F91923: PDX 2026-12-12 12:51:00 → ONT 2026-12-12 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2026-12-12 12:51:00 → LAS 2026-12-12 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2026-12-12 17:25:00 → ONT 2026-12-12 18:31:00.
  • Frontier Airlines F92913: ONT 2026-12-20 09:25:00 → PDX 2026-12-20 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-12 → 2026-12-20 · $306.70

  • Alaska Airlines AS427 / AS575: PDX 2026-12-12 05:30:00 → ONT 2026-12-12 11:18:00; 1 stop(s) via SEA; 348 minutes. Local airport times.
    • AS427: PDX 2026-12-12 05:30:00 → SEA 2026-12-12 06:31:00; layover at SEA: 123 minutes.
    • AS575: SEA 2026-12-12 08:34:00 → ONT 2026-12-12 11:18:00.
  • Alaska Airlines AS3312: ONT 2026-12-20 10:40:00 → PDX 2026-12-20 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-12 → 2026-12-20 · $319.70

  • Southwest Airlines WN1593 / WN1053: PDX 2026-12-12 11:20:00 → ONT 2026-12-12 16:15:00; 1 stop(s) via OAK; 295 minutes. Local airport times.
    • WN1593: PDX 2026-12-12 11:20:00 → OAK 2026-12-12 13:05:00; layover at OAK: 115 minutes.
    • WN1053: OAK 2026-12-12 15:00:00 → ONT 2026-12-12 16:15:00.
  • Southwest Airlines WN174 / WN930: ONT 2026-12-20 15:05:00 → PDX 2026-12-20 19:20:00; 1 stop(s) via SJC; 255 minutes. Local airport times.
    • WN174: ONT 2026-12-20 15:05:00 → SJC 2026-12-20 16:20:00; layover at SJC: 65 minutes.
    • WN930: SJC 2026-12-20 17:25:00 → PDX 2026-12-20 19:20:00.

2026-12-12 → 2026-12-20 · $319.70

  • Southwest Airlines WN510 / WN1383: PDX 2026-12-12 07:30:00 → ONT 2026-12-12 12:40:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
    • WN510: PDX 2026-12-12 07:30:00 → SJC 2026-12-12 09:20:00; layover at SJC: 120 minutes.
    • WN1383: SJC 2026-12-12 11:20:00 → ONT 2026-12-12 12:40:00.
  • Southwest Airlines WN174 / WN930: ONT 2026-12-20 15:05:00 → PDX 2026-12-20 19:20:00; 1 stop(s) via SJC; 255 minutes. Local airport times.
    • WN174: ONT 2026-12-20 15:05:00 → SJC 2026-12-20 16:20:00; layover at SJC: 65 minutes.
    • WN930: SJC 2026-12-20 17:25:00 → PDX 2026-12-20 19:20:00.

Explore this route

For AI assistants

  • This page: Portland (PDX) to Ontario (ONT) · Dec 12, 2026 · return Dec 20, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Portland to Ontario (ONT) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.