Trip plan · Oct 7, 2026Eindhoven → Espoo

Getting to Junction 2026 for as little as possible

Europe's biggest hackathon, 13–15 November at Hype Areena in Espoo (Finland). OpenAI is on the tech-partner list. Free entry. Here is the cheapest way to get there from Eindhoven, and from Madrid for your friend.

13–15 NovFri 16:00 doors → Sun 17:00 end

25 OctApplication deadline (midnight, Finnish time)

~€130–300Indicative total from Eindhoven via Charleroi

0 bedsVenue has no sleeping areas

Do this first. Entry is by application and accepted participants only. Applications close at midnight on 25 Oct (Finnish time). Make sure your invitation is turned into an accepted application, and that your Madrid friend applies too. The €300/€100 travel-grant deadline (6 Sept) has already passed. It is worth emailing hello@hackjunction.com to ask if any are left, but do not count on it.

The event

Where: Hype Areena, Vanha Jorvaksentie 3, Kivenlahti, Espoo. This is Espoo, not central Helsinki. Kivenlahti is the last stop on the west end of the metro line, about 30 min from Helsinki Central.
When: Fri 13 Nov doors 16:00, opening ceremony 18:00 · Sat workshops, hacking all day · Sun final submissions 10:00, final ceremony 14:00, event ends 17:00, doors close 18:00. "Junction Week" pre-events start Mon 9 Nov (optional).
Sponsors: OpenAI is listed as a tech partner on the official page, next to Google DeepMind, Arduino and others. Tracks are not announced yet.
Money: free for accepted participants, 100k€ in prizes, teams of up to 4, open-source (MIT) submissions.
Food/sleep: venue is open 24 h for the whole 48 h. The FAQ says there are no dedicated sleeping areas. Discounted rooms are offered at partner hotels near the venue.

Best route from Eindhoven

There is no direct Eindhoven–Helsinki flight. The cheapest real options are below. Prices are what the comparison sites showed on 7 Oct. They are indicative, not live quotes: fares move daily, so re-check them with your exact dates.

Route	How	Indicative cost (return)	Verdict
1. Charleroi (CRL) direct	Bus Eindhoven → Charleroi Airport (FlixBus / Flibco, 8 a day, ~2.5–3 h) + Ryanair CRL ⇄ HEL, direct, ~2h45	Flights: from €19 one-way (seen for Mon 16 Nov), expect ~€40–120 return for a Fri/Sun trip. Bus: ~€30 each way as listed.	Cheapest. Roughly €110–240 for bus + flights.
2. Amsterdam (AMS)	Train Eindhoven → Schiphol (~1h30) + KLM / Finnair / Norwegian / SAS direct, ~2h30	Return seen ~€290 for 16–19 Nov. Train ~€20 each way.	Most comfortable, about 2× the price. Pick if Charleroi days do not fit.
3. Brussels (BRU)	Train Eindhoven → Brussels + Finnair / Brussels Airlines / SAS	Finnair seen from €268 return (21–24 Nov). Kiwi lists one-ways from ~$105.	Only if a cheap fare shows up. Not better than 1 or 2.
4. Eindhoven (EIN) with stops	Kiwi combines Ryanair/Wizz flights with 1–2 stops, from Eindhoven airport itself	~$250 return seen for an October date.	Self-made connections. A missed leg is not protected. Avoid.
5. Tallinn + ferry	Fly to Tallinn (no direct from EIN), ferry Tallinn → Helsinki, 2 h	Flights from ~€149 + ferry €15–35 each way.	Not cheaper, and slower.

Why Charleroi wins, and the catch

Ryanair is the only cheap direct to Helsinki in the Benelux. It leaves from Charleroi, not Brussels Airport. The catch is that it does not fly every day: sources show about 4 departures a week from Charleroi and 3 a week back, and one fare page lists only 13 flying days in November. Winter 2026 is also the season when Ryanair is cutting Charleroi capacity because of the new Belgian tax. So the first thing to do is open the Ryanair fare calendar for CRL ⇄ HEL and see which of Thu 12 / Fri 13 Nov and Sun 15 / Mon 16 Nov are available. I could not confirm the exact days.

Outbound: be in Espoo by Fri 16:00 (doors) or at the latest 18:00 (opening). Ryanair CRL flights have left early morning (06:30–07:50), arriving ~10:30–11:00 Finnish time (+1 h). That fits Friday perfectly. If there is no Friday flight, fly Thu 12 and add one hostel night.
Return: the final ceremony is Sun 14:00 and everything ends 17:00. A Sunday evening departure (HEL → CRL was shown at 10:35 and as late as 21:00 depending on the schedule period) means you only pay for 2 nights. If the only return is Monday morning, add a third night.
Bags: Ryanair's free item is small. For a hackathon weekend a backpack is enough. Pay for nothing extra and print or save the boarding pass in the app.
Bus: FlixBus Eindhoven → Charleroi Airport runs 8 times a day. Book the day before the flight so a late bus does not make you miss it. Compare with Flibco, which also serves Eindhoven.

Airport to venue

Helsinki-Vantaa → Helsinki Central by commuter train (I/P, ~30 min), then metro towards Kivenlahti (~30 min). One HSL ABC ticket, €4.80, is valid for 90 minutes and covers the whole chain (buy it in the HSL app). Total about 1h15.

Where to sleep, cheapest first

Option	Cost	Notes
Stay awake at the venue	€0	Open 24 h, but there are no sleeping areas. Fine for the Saturday night if your team hacks through. Not realistic for two nights. Bring a sleeping mat and earplugs only if you accept sleeping on a floor.
Share a room with teammates	~€15–25 per head per night	The official Junction Discord is where participants find teammates. Splitting a 4-bed room or an apartment with 2–3 people is the cheapest comfortable option.
Forenom Hostel Espoo Otaniemi (4-bed dorm)	~$38 average, ~$60 for some dates	Otaniemi (Aalto University) is on the same metro line as Kivenlahti, ~20–25 min away. November looks like a pricier month there, so check the real date.
CheapSleep Helsinki (8/18-bed dorm)	from ~$47 (~$54 with fees)	In Helsinki, not near the venue. ~30–40 min each way by metro. Only worth it if you want a Helsinki base.
Junction partner hotels	Discounted, price not published	Offered near the venue in Espoo. Details come with acceptance. Compare against the hostels before booking.

Two nights (Fri + Sat) in a dorm: roughly €70–120. With a shared room, closer to €40–60.

Total budget from Eindhoven (indicative)

Item	Lean (via Charleroi)	Comfortable (via Amsterdam)
Eindhoven ⇄ airport	€40–60 (bus)	~€40 (train)
Flights	€40–120	~€290
Helsinki local transport	~€10–15	~€10–15
2 nights	€40–120	€70–120
Total	~€130–315	~€410–465

I did not find a confirmed 2026 meal plan, so budget a little extra for food or bring snacks.

Your friend in Madrid

Spain → Finland has one nonstop option, and it is not cheap by Ryanair standards.

Route	Details	Indicative	Verdict
Madrid → Helsinki nonstop	Finnair and Iberia fly it direct, ~4h15. Land in the morning so the doors at 16:00 are easy.	Sites list "from ~€118" and an average November return of ~$286.	Simple and reliable. Best if the price is near €150–250 return.
Madrid → Helsinki with one stop	Ryanair/Norwegian-style connections come out cheapest on aggregators (Ryanair shows as cheapest ~two-thirds of the time).	Can undercut Finnair, but check the total travel time and bag fees.	Take it only if it is clearly cheaper and the layover is under ~4 h.
Meet in Eindhoven or Charleroi first	Madrid → Charleroi/Eindhoven, then fly together on the Ryanair CRL flight.	Depends on a cheap Madrid–Belgium fare, which I did not verify.	Worth a quick look only if you want to travel together.

The cheapest date I saw for the Madrid–Helsinki route was Wed 18 Nov, which is after the event. For Fri 13 → Sun 15 expect higher. Midweek or Thu 12 could save money.
Spain is in Schengen, so an ID card is enough.
The friend must also apply to Junction before 25 Oct. Ask them to apply now.
Cheapest on the ground: both of you take the same room. A shared 4-bed dorm in Otaniemi or a split apartment cuts the lodging per head in half.

Next steps, in order

Confirm you and your friend have applied and are accepted (deadline 25 Oct).
Open the Ryanair CRL ⇄ HEL calendar and note which of Thu 12 / Fri 13 and Sun 15 / Mon 16 Nov fly.
Book flights as soon as you are accepted. Fares for a hackathon weekend only go up.
Book the Eindhoven ⇄ Charleroi bus the same day.
Join the Junction Discord, find a roommate, then book the hostel or partner hotel.
For your friend, compare Finnair/Iberia nonstop against the cheapest one-stop for Fri 13 Nov / Sun 15 Nov.

What I could not verify

Live fares. The numbers above come from aggregator pages (Kiwi, Skyscanner, Momondo, Expedia, Ryanair's route page) and are snapshots.
Ryanair's exact winter 2026 CRL ⇄ HEL days and times.
Partner-hotel prices and the 2026 meal plan.
Whether any travel grants remain after 6 Sept.