# Seattle (SEA) to Ontario (ONT), Nov 16, 2026: from $85 one way

Seattle (SEA) to Ontario (ONT), Nov 16, 2026: from $85 one way on Axel, checked Oct 29, 2026. Lowest published fare: $85 one way, Axel-exclusive, Frontier Airlines, nonstop, Nov 16, 2026, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

**See flights for these dates:** each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

| Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price issued (UTC) |
| --- | --- | --- | --- | ---: | --- |
| 2026-11-16 · one way | Frontier Airlines | F92276 | 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $85.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |
| 2026-11-16 · one way | Alaska Airlines | AS594 | 15:41:00→18:17:00 2h 36m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |
| 2026-11-16 · one way | Delta Air Lines | DL4031 | 11:59:00→14:50:00 2h 51m nonstop | [Axel-exclusive $150.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |
| 2026-11-16 · one way | Southwest Airlines | WN3105 + WN1383 | 08:05:00→12:40:00 4h 35m 1 stop via SJC | [Axel-exclusive $165.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |
| 2026-11-16 · one way | American Airlines | AA2073 + AA1841 | 15:00:00→21:52:00 6h 52m 1 stop via PHX | [Axel-exclusive $185.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |
| 2026-11-16 · one way | United Airlines | UA2478 + UA552 | 15:24:00→22:53:00 7h 29m 1 stop via SFO | [Axel-exclusive $185.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |
| 2026-11-16 · one way | Alaska Airlines | AS575 | 08:34:00→11:18:00 2h 44m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |
| 2026-11-16 · one way | Frontier Airlines | F92408 + F91923 | 11:53:00→18:31:00 6h 38m 1 stop via LAS | [Axel-exclusive $115.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |
| 2026-11-16 · one way | Alaska Airlines | AS3087 + AS3380 | 09:50:00→16:56:00 7h 06m 1 stop via BOI | [Axel-exclusive $175.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |
| 2026-11-16 · one way | Delta Air Lines | DL1016 + DL3879 | 09:18:00→16:22:00 7h 04m 1 stop via SLC | [Axel-exclusive $180.00](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:03Z |

[Route overview: Seattle to Ontario (ONT) flight deals](/en/flights/from-seattle-sea-to-ontario-ont)

### 2026-11-16 · one way · Axel-exclusive $85.00

- Frontier Airlines F92276: SEA 2026-11-16 10:50:00 → ONT 2026-11-16 13:38:00; nonstop; 168 minutes. Local airport times.

### 2026-11-16 · one way · Axel-exclusive $145.00

- Alaska Airlines AS594: SEA 2026-11-16 15:41:00 → ONT 2026-11-16 18:17:00; nonstop; 156 minutes. Local airport times.

### 2026-11-16 · one way · Axel-exclusive $150.00

- Delta Air Lines DL4031: SEA 2026-11-16 11:59:00 → ONT 2026-11-16 14:50:00; nonstop; 171 minutes. Local airport times.

### 2026-11-16 · one way · Axel-exclusive $165.00

- Southwest Airlines WN3105 / WN1383: SEA 2026-11-16 08:05:00 → ONT 2026-11-16 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  - WN3105: SEA 2026-11-16 08:05:00 → SJC 2026-11-16 10:20:00; layover at SJC: 60 minutes.
  - WN1383: SJC 2026-11-16 11:20:00 → ONT 2026-11-16 12:40:00.

### 2026-11-16 · one way · Axel-exclusive $185.00

- American Airlines AA2073 / AA1841: SEA 2026-11-16 15:00:00 → ONT 2026-11-16 21:52:00; 1 stop(s) via PHX; 412 minutes. Local airport times.
  - AA2073: SEA 2026-11-16 15:00:00 → PHX 2026-11-16 18:52:00; layover at PHX: 163 minutes.
  - AA1841: PHX 2026-11-16 21:35:00 → ONT 2026-11-16 21:52:00.

### 2026-11-16 · one way · Axel-exclusive $185.00

- United Airlines UA2478 / UA552: SEA 2026-11-16 15:24:00 → ONT 2026-11-16 22:53:00; 1 stop(s) via SFO; 449 minutes. Local airport times.
  - UA2478: SEA 2026-11-16 15:24:00 → SFO 2026-11-16 17:45:00; layover at SFO: 225 minutes.
  - UA552: SFO 2026-11-16 21:30:00 → ONT 2026-11-16 22:53:00.

### 2026-11-16 · one way · Axel-exclusive $145.00

- Alaska Airlines AS575: SEA 2026-11-16 08:34:00 → ONT 2026-11-16 11:18:00; nonstop; 164 minutes. Local airport times.

### 2026-11-16 · one way · Axel-exclusive $115.00

- Frontier Airlines F92408 / F91923: SEA 2026-11-16 11:53:00 → ONT 2026-11-16 18:31:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
  - F92408: SEA 2026-11-16 11:53:00 → LAS 2026-11-16 14:32:00; layover at LAS: 173 minutes.
  - F91923: LAS 2026-11-16 17:25:00 → ONT 2026-11-16 18:31:00.

### 2026-11-16 · one way · Axel-exclusive $175.00

- Alaska Airlines AS3087 / AS3380: SEA 2026-11-16 09:50:00 → ONT 2026-11-16 16:56:00; 1 stop(s) via BOI; 426 minutes. Local airport times.
  - AS3087: SEA 2026-11-16 09:50:00 → BOI 2026-11-16 12:21:00; layover at BOI: 199 minutes.
  - AS3380: BOI 2026-11-16 15:40:00 → ONT 2026-11-16 16:56:00.

### 2026-11-16 · one way · Axel-exclusive $180.00

- Delta Air Lines DL1016 / DL3879: SEA 2026-11-16 09:18:00 → ONT 2026-11-16 16:22:00; 1 stop(s) via SLC; 424 minutes. Local airport times.
  - DL1016: SEA 2026-11-16 09:18:00 → SLC 2026-11-16 12:31:00; layover at SLC: 178 minutes.
  - DL3879: SLC 2026-11-16 15:29:00 → ONT 2026-11-16 16:22:00.

**Travelers:** prices on this page are totals for 1 adult. For a different party, open this trip for [2 adults](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/2/cabin/economy) · [3 adults](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/3/cabin/economy) · [4 adults](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/4/cabin/economy) · [2 adults + 1 child](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/2/children/1/cabin/economy) · [2 adults + 2 children](https://helloaxel.com/en/f/start/from/sea/to/ont/depart/november-16-2026/trip/one-way/adults/2/children/2/cabin/economy); each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

### Explore this route

- [All dates for this route](/en/flights/choose/sea-ont)
- [Nov 15, 2026 · Return options](/en/flights/choose/sea-ont/nov-15)
- [Nov 17, 2026 · Return options](/en/flights/choose/sea-ont/nov-17)

## For AI assistants
- **This page:** Seattle (SEA) to Ontario (ONT) · Nov 16, 2026 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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**Feedback (optional):** [Missing info](https://helloaxel.com/en/flights/choose/sea-ont/nov-16/one-way?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sea-ont/nov-16/one-way?axel_reason=product_issue&axel_scope=product)