Open’er Festival — festival guide

At a glance

Dates

30 Jun – 3 Jul 2027 (4 days)

Location

Gdynia-Kosakowo Airport, Kosakowo, Poland

Sound

EDM

Tickets

€130 – €909 · 6 tiers tracked

Line-up announced

1 artist so far

The story

Open'er Festival is a music festival taking place in Kosakowo, Poland from June 30 to July 3, 2027. It is held at the Gdynia-Kosakowo Airport, known for its lively atmosphere and diverse lineup. The festival features multiple days of performances by various artists, including the headliner Tame Impala on June 30, 2027.

Open’er Festival is a 4-day edm festival at Gdynia-Kosakowo Airport in Kosakowo, Poland. The June 2027 edition runs 30 Jun – 3 Jul 2027.

Announced so far: Tame Impala. The line-up is spread across the 4 festival days, so a full-weekend ticket is the only way to catch every name.

Everything happens at Gdynia-Kosakowo Airport, in Kosakowo. Kosakowo is the base for the trip: it is where the affordable beds, the late trains and the after-parties are, and where prices climb fastest as the dates approach.

Open’er Festival keeps the same calendar slot each year: June 2027 for this edition, opening on a Wednesday and closing on a Saturday. It is a high-summer date, which is peak season for both travel and accommodation across the region. That slot matters for the budget — flights and rooms in Kosakowo are priced for the festival weekend, not the week around it, so shifting your arrival by a day often saves more than any ticket tier does.

• Date: June 30 - July 3, 2027
• Venue: Gdynia-Kosakowo Airport
• Headliner: Tame Impala on June 30, 2027
• Website: opener.pl/en

What the trip costs from Paris

Door to door from Paris, a trip to Open’er Festival works out at roughly €471 per person on the cheapest combination we track — a mid-priced weekend by the standards of our index.

The ticket is only 28% of that: the rest is getting there and sleeping somewhere, which is exactly the part most ticket sites leave out.

Cheapest travel we price is bus · 22h 40m each way, at €149 return.

Planning the trip, step by step

1. 1Book the ticket first: tiers at Open’er Festival are sold in waves and the cheapest wave is gone long before the line-up is complete.
2. 2Then price the travel from Paris — Cinderella compares train, bus, car and flight for the same dates, and the cheapest option is not always the obvious one.
3. 3Reserve 5 nights rather than 4: the last night of a festival almost always ends after the last train home.
4. 4Follow Open’er Festival on Cinderella to be emailed when a ticket price drops or a new tier opens.

Line-up, day by day

• Day 1 — Wednesday 30 June

  Tame Impala

• Day 2 — Thursday 1 July

  Line-up to be announced

• Day 3 — Friday 2 July

  Line-up to be announced

• Day 4 — Saturday 3 July

  Line-up to be announced

Full line-up

Ordered as the poster reads it — headliners first, then most booked to least. Each name opens that artist's festival dates.

Past editions

Dates are the event's recurring calendar slot, so treat them as approximate — the organiser keeps the official archive.

• 2026

  30 Jun – 3 Jul 2026 (approx.)

  Regulars: Tame Impala

• 2025

  30 Jun – 3 Jul 2025 (approx.)

• 2024

  30 Jun – 3 Jul 2024 (approx.)

Travel tips from Paris

• The site itself is Gdynia-Kosakowo Airport, in Kosakowo.
• Book a bed in Kosakowo early — rooms around a festival sell out before the last ticket tier does.

• bus22h 40m · €149
• air5h 16m · €233